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Hitachi NR83A 3-1/4" Full Head Nailer

Hitachi NR83A 3-1/4" Full Head Nailer Parts

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We Sell Only Genuine Hitachi ® Parts.

Hitachi NR83A 3-1/4" Full Head Nailer

Hitachi NR83A 3-1/4" Full Head Nailer Parts

Page A
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 Fig #
1
Hex Socket Head Bolt M6X45
 $4.79
Part Number: 949832
In Stock, 7 Available
Ships within 1 business day

2
Spring Washer M6 (10 Pcs.)
 $1.99
Part Number: 949455
In Stock, 25 Available
Ships within 1 business day

3
Top Cover
 $5.84
Part Number: 877330
In Stock, 25+ Available
Ships within 1 business day

4
Hex. Socket HD. Bolt M6X25 (10 Pcs.)
 $3.99
Part Number: 949-652
In Stock, 4 Available
Ships within 1 business day

5B
Exhaust Cover
 $26.27
Part Number: 877324
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

6
Gasket (B)
 $5.18
Part Number: 877325
In Stock, 25+ Available
Ships within 1 business day

7
Gasket (F)
 $2.99
Part Number: 877329
In Stock, 16 Available
Ships within 1 business day

8
Exhaust Piece
 $20.68
Part Number: 877328
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

9
Gasket (C)
 $3.99
Part Number: 877-326
In Stock, 5 Available
Ships within 1 business day

Note: Till June, 1988
9A
Gasket C
 $2.99
Part Number: 877854
In Stock, 24 Available
Ships within 1 business day

Note: Since July, 1988
10
Valve O-Ring
 $3.99
Part Number: 872-821
In Stock, 11 Available
Ships within 1 business day

Note: Till January, 1987
11A
Exhaust Valve
 $6.61
Part Number: 878-417
In Stock, 25+ Available
Ships within 1 business day

12A
Head Cap and Gasket Set
 $44.10
Part Number: 877-307
In Stock, 22 Available
Ships within 1 business day

Note: Includes figure 9A
13
O-Ring
 $2.99
Part Number: 877368
In Stock, 25+ Available
Ships within 1 business day

14
Piston Driver Assembly
 $93.54
Part Number: 885915
In Stock, 25+ Available
Ships within 1 business day

Note: Includes figure 13
14
Piston High Speed Steel Tip
 $367.43
Part Number: 877-375
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

15
O-Ring
 $2.99
Part Number: 877316
In Stock, 21 Available
Ships within 1 business day

16
Cylinder O-Ring
 $2.99
Part Number: 877312
In Stock, 23 Available
Ships within 1 business day

17
Cylinder Plate
 $10.56
Part Number: 877-318
In Stock, 5 Available
Ships within 1 business day

18
Cylinder O-Ring (I.D 79.3)
 $2.99
Part Number: 877-313
In Stock, 14 Available
Ships within 1 business day

19
Cylinder
 $60.57
Part Number: 884-068
In Stock, 6 Available
Ships within 1 business day

20
Cylinder O-Ring (I.D 69.3)
 $2.99
Part Number: 877314
In Stock, 25+ Available
Ships within 1 business day

21
Cylinder Ring
 $1.99
Part Number: 886483
In Stock, 17 Available
Ships within 1 business day

22
Cylinder Spring
 $1.99
Part Number: 877-321
In Stock, 9 Available
Ships within 1 business day

23
Base Washer
 $2.99
Part Number: 877322
In Stock, 7 Available
Ships within 1 business day

24
Cylinder Guide
 $26.63
Part Number: 877-310
In Stock, 5 Available
Ships within 1 business day

25
Gasket (G)
 $2.99
Part Number: 877327
In Stock, 25+ Available
Ships within 1 business day

26B
Body (B)
 $308.60
Part Number: 877-835
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

27
Name Plate
 
No Longer Available [ More Info ]
Part Number: 308-864
Not Available

28
Cylinder O-Ring (I.D 63.9)
 $2.99
Part Number: 877315
In Stock, 8 Available
Ships within 1 business day

29
Cylinder Bumper
 
No Longer Available [ More Info ]
Part Number: 877-319
Discontinued
Not Available

Note: Till February, 1987

31A
Piston Bumper
 $44.10
Part Number: 878-303
In Stock, 15 Available
Ships within 1 business day

31A
Piston Bumper (B)
 $17.67
Part Number: 883511
In Stock, 25+ Available
Ships within 1 business day

31A
Piston Bumper
 $44.10
Part Number: 878-303
In Stock, 15 Available
Ships within 1 business day

32
Gasket (A)
 $2.99
Part Number: 877334
In Stock, 25+ Available
Ships within 1 business day

33B
High Tension Bolt M6X18
 
No Longer Available [ More Info ]
Part Number: 888245
Discontinued
Not Available


36C
Guard (A)
 $6.61
Part Number: 878-419
In Stock, 13 Available
Ships within 1 business day

37
Washer
 $4.00
Part Number: 877402
In Stock, 7 Available
Ships within 1 business day

38
Nose
 $315.67
Part Number: 884-076
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

40
Hex. Socket HD. Bolt M8X25 (10 Pcs.)
 $6.22
Part Number: 949-760
In Stock, 10 Available
Ships within 1 business day

42
Gasket (D)
 $2.99
Part Number: 877331
In Stock, 25+ Available
Ships within 1 business day

43A
Cap
 $5.51
Part Number: 878-311
In Stock, 25+ Available
Ships within 1 business day

44
Spring Washer
 $3.99
Part Number: 949454
In Stock, 16 Available
Ships within 1 business day

45A
Hex. Socket Hd. Bolt M5 X 18 10 Pcs.
 $3.99
Part Number: 949658
In Stock, 16 Available
Ships within 1 business day

46
Dust Cap
 $2.99
Part Number: 872-035
In Stock, 19 Available
Ships within 1 business day

47
Roll Pin D3X30 (10 Pcs.)
 $4.02
Part Number: 949-866
In Stock, 15 Available
Ships within 1 business day

48
Safety Bolt
 $2.99
Part Number: 875-650
In Stock, 23 Available
Ships within 1 business day

49
Spring
 $2.99
Part Number: 877-365
In Stock, 25+ Available
Ships within 1 business day

50
Pushing Lever
 $47.78
Part Number: 877-391Z
In Stock, 11 Available
Ships within 1 business day

51
Nut M5 (Black)
 $3.99
Part Number: 949555
In Stock, 13 Available
Ships within 1 business day

52
Plunger Spring
 $2.99
Part Number: 875-643
In Stock, 16 Available
Ships within 1 business day

53
O-Ring
 $2.99
Part Number: 874436
In Stock, 22 Available
Ships within 1 business day

54A
Plunger (A)
 $3.99
Part Number: 877-338
In Stock, 12 Available
Ships within 1 business day

55
Valve Bushing
 $16.18
Part Number: 877-337
In Stock, 11 Available
Ships within 1 business day

56
O-Ring
 $1.99
Part Number: 875-638
In Stock, 25+ Available
Ships within 1 business day

57
Trigger
 $3.99
Part Number: 876203
In Stock, 11 Available
Ships within 1 business day

58
Plunger (B)
 $3.99
Part Number: 877-339
In Stock, 20 Available
Ships within 1 business day

59A
Valve Packing
 $1.99
Part Number: 888151
In Stock, 25+ Available
Ships within 1 business day

60
Urethane Ball
 $4.46
Part Number: 875645
In Stock, 25+ Available
Ships within 1 business day

61
Valve Plate
 $3.99
Part Number: 875-644
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

62A
Trigger Valve Bushing
 $8.45
Part Number: 877-335
In Stock, 7 Available
Ships within 1 business day

63A
Trigger Plunger
 $3.99
Part Number: 878-121
In Stock, 8 Available
Ships within 1 business day

64
Nail Feeder
 $57.41
Part Number: 877393Z
In Stock, 19 Available
Ships within 1 business day

65
Spring Shaft
 
No Longer Available [ More Info ]
Part Number: 877-395Z
Discontinued
Not Available

Note: Till January, 1987

65A
Needle Roller
 $2.99
Part Number: 878-418
In Stock, 25+ Available
Ships within 1 business day

Note: Since February, 1987
66A
RIBBON SPRING SET
 $11.40
Part Number: 878421
In Stock, 2 Available
Ships within 1 business day

Note: Includes figure 65A
67
Nylon Nut M4
 $2.99
Part Number: 876-465
In Stock, 11 Available
Ships within 1 business day

68
Spring Washer M4 10 Pcs.
 $3.99
Part Number: 949453
In Stock, 2 Available
Ships within 1 business day

69
Magazine Assembly
 
No Longer Available [ More Info ]
Part Number: 884-570
Discontinued
Not Available


70
Sleeve
 $3.99
Part Number: 876550
In Stock, 8 Available
Ships within 1 business day

71
Hex. Socket Hd. Bolt M5 X 45 10 Pcs.
 $4.46
Part Number: 949824
In Stock, 5 Available
Ships within 1 business day

72
Hex. Socket HD. Bolt M5X25 (10 Pcs.)
 $3.99
Part Number: 949-662
In Stock, 8 Available
Ships within 1 business day

73
Washer M5 (10 Pcs.)
 $3.99
Part Number: 949-424
In Stock, 3 Available
Ships within 1 business day

74
Stop Lever
 $5.18
Part Number: 877396Z
In Stock, 6 Available
Ships within 1 business day

75
Collar
 $3.99
Part Number: 877398
In Stock, 5 Available
Ships within 1 business day

76
Stopper Spring
 $4.45
Part Number: 877-397
In Stock, 13 Available
Ships within 1 business day

77
Hex. Socket HD. Bolt M4X15 (10 Pcs.)
 $3.99
Part Number: 949-650
In Stock, 5 Available
Ships within 1 business day

78
Plunger O-Ring
 $2.99
Part Number: 874-820
In Stock, 16 Available
Ships within 1 business day

79
Nylon Nut
 $1.99
Part Number: 877-371
In Stock, 16 Available
Ships within 1 business day

81
Magazine Assembly
 
No Longer Available [ More Info ]
Part Number: 884-570
Discontinued
Not Available

Note: Includes figures 44, 67-71, 74-77 and 79

83
Warning Label
 $2.99
Part Number: 884-070
In Stock, 9 Available
Ships within 1 business day

500
Hex. Bar Wrench 6mm
 $3.99
Part Number: 872422
In Stock, 7 Available
Ships within 1 business day

501
Allen Wrench For M5 Screw
 $3.99
Part Number: 944459
In Stock, 3 Available
Ships within 1 business day

502
Hex. Bar Wrench 4MM
 $2.25
Part Number: 944458
In Stock, 9 Available
Ships within 1 business day

503A
Eye Protector
 $18.21
Part Number: 875769
In Stock, 1 Available
Ships within 1 business day

505
Caution Tag
 $1.99
Part Number: 882-413
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

506
Leaflet
 $1.99
Part Number: 882-414
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

Miscellaneous Parts
 Fig #
601
Piston High Speed Steel Tip
 $367.43
Part Number: 877-375
Ships In 13 - 19 Business Days
Ships in 13 - 19 business days

602
Single Shot Parts
 $96.87
Part Number: 876-762
In Stock, 12 Available
Ships within 1 business day

603
Grease (Attolub No.2) 500G
 $36.45
Part Number: 317-918
In Stock, 3 Available
Ships within 1 business day

605
Pin
 $1.99
Part Number: 887768
In Stock, 9 Available
Ships within 1 business day

606
Tape Optional
 $1.99
Part Number: 888213
In Stock, 2 Available
Ships within 1 business day

607
Remote Fire Valve
 
No Longer Available [ More Info ]
Part Number: 878-223
Discontinued
Not Available


800
O-Ring Overhaul Kit
 $27.33
Part Number: 18000
In Stock, 15 Available
Ships within 1 business day

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Discussion
Discussion for the Hitachi NR83A 3-1/4" Full Head Nailer

Discussion is closed. To ask our experts a question about a part, use the Q&A feature on our product pages.
Question: Hitachi NR83A

Fixthisnailer

I have an old school 3-1/4” framing nailer that is over 20 years old. The driver drives the nail only once and The driver doesnot retract. I have to remove the nails in cartridge, then manually push the driver back into position. What part or parts is causing this, & is there a piston rebuild kit?
WJA
You will need to remove the top of the gun, To see what parts are worn or broken. Such as o-rings, seals, piston bump etc. There is an o-ring kit available but no driver/piston kit
Question: Leaking Air Out The Exhaust

Nail_Head

I removed the exhaust cover for an older 1984 Hitachi nr 83a to inspect the head cap and found a thin metal circular clip imbedded in the edge of the head cap (approx. 3/8 diam. and 1/8 high). Not sure were this came from in the nail gun. I am unable to find this part in the diagram. Any help is appreciated to make sure I don't miss replacing any necessary parts.
Question: Nail Depth Issue

gt4384

i have an older Nr83a . i have replaced all the seals, just recently replaced the driver . and i can not get it to properly sink the nails . trigger dosent leak. the gun is running off an emglo airmate at 120 psi. using a 3/8 line and connector .
Check for excessive grooving of the cylinder wall.
Question: Remote Firing Valve

jamesr

what is a remote firing valve
Question: Air Leak

chiselcreek

I have a major air leak around the trigger. When I hold the tigger in the air leak stops and the gun will bump nail. When I release the trigger the air leaks and the gun will not build pressure. I change the two o-ring in the trigger area and clean the ball. Any help?
WJA
Hello chiselcreek,

There a quite a few parts involved with the trigger. Check them all for wear. Hopefully it will be one of those parts.

Good luck,
-WJA
Hi chiselcreek,
Replace all the trigger parts as wear in this area is accumulative and you will drive yourself nuts guessing at what part is causing the problem. Even if you do find the part causing the problem you will have future problem in this area if all are not replaced together.Hope this helps.Good luck.
Tinker
The urethane ball sits in a packing, or seal. It's probably deteriorated.
Question: Leak

dizj1

I took apart my NR83A and replaced all O rings and most gaskets. Including trigger o-rings. Put everything back together and I have massive air leakage from exhaust draining my compressor pressure. Any ideas?
Hi dijz1: Did you replace O-Ring (S-90) Part Number: 877-316? This is the bulkhead O-ring where a lot of leaks are from.Also does the tool shoot ok other then the air leak?Knowing this will help us troubleshoot the tool better for you.
Tinker
The cylinder on the Hitachi move up and down to fire. Most likely you need to turn the gun upside down and "whack" the top of the gun on a piece of wood to cause the cylinder to seal to the head valve. If that does not work you will need to replace the head valve (877-307).
Ken
Question: Rebuilding Hitachi Nr83aa- Rippe...

henriksen2008

I have to replace the cylinder ring on this nail gun, but since it was ripped i'm not sure where it goes on the cylinder. I think it goes over where the small holes are?
Hi, Yes it goes over the holes and is a cylinder check valve for return air. Nail guns use low pressure to pull the piston driver assembly back up to the top of the cylinder and this check valve helps it do that. Hope this helps.
Question: Hitachi NR83A Framing Nailer - P...

americantoolman

The piston driver on my tool does not retract like it should when bump firing the tool. It hangs up until I release the trigger, then retracts as norma. It acts like a sequential fire tool. Something weird in the exhaust system? Any ideas? I just cleaned the tool and replaced all rings and packings. Thanks, Mike.
[QUOTE=americantoolman;5093]The piston driver on my tool does not retract like it should when bump firing the tool. While holding the trigger and pressing to wood it fires but hangs up on return. If I fire like a sequential fire tool pulling the trigger each time it fires and retracts like normal.

I just cleaned the tool and replaced all o rings and packings. Changed out cylinder seal and rechecked trigger parts. Now I'm begining to swap out parts - process of elimination. Anybody seen this before? Any ideas? Thanks, Mike." Thanks, mike.
UtahAV
Hi Mike,

I am stumped with your problem as well. I can't figure why the gun would fire OK sequentially but not while bumping. Many issues with nail gun pistons not returning are caused by the trigger valve. You might want to check there for bad o-rings or maybe debris from worn part elsewhere in the gun.

Sorry I can't be more help. Let us know how it turns out.

Good Luck!

-UtahAV
-Mark
Finally figured it out. Simple really. The adjustable screw on the push lever was too far out, eventhough it was just short of the valve bushing it would not allow the plunger to move out enough to fully cycle the tool. I guess the push lever was out of play while firing sequentually.
UtahAV
Good to hear that it was nothing serious. I hadn't though of that. Makes sense though.

Thanks for letting us all know what the solution was!

-UtahAV
-Mark
Most likely the exhaust valve (it's plastic) in the head, or top cover
Question: Hitachi Strip Nailer Ribbon Spri...

1282240

I took apart the strip that holds the nails and thee ribbon spring came off I can not figure out how to put it back on. Any one with suggestions or video? Thank you
Remove the magazine. It's set up to just loosen the screw that holds the ribbon spring. It's pretty self explanatory once the magazine is off.
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