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Hitachi NR83A 3-1/4" Full Head Nailer

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

Page A

 Fig # Img Part Name Availability Price
1
Hex Socket Head Bolt M6X45
Part #: 949832
Ships in 14 - 20 business days
 $4.56
Add To Cart
2Spring Washer M6 (10 Pcs.)
Part #: 949455
In stock
11 available
 $3.99
Add To Cart
3Top Cover
Part #: 877330
In stock
25+ available
 $5.55
Add To Cart
4Hex. Socket HD. Bolt M6X25 (10 Pcs.)
Part #: 949-652
In stock
5 available
 $3.50
Add To Cart
5BExhaust Cover
Part #: 877324
In stock
3 available
 $25.00
Add To Cart
6Gasket B
Part #: 877325
In stock
18 available
 $4.91
Add To Cart
7Gasket (F)
Part #: 877329
In stock
16 available
 $2.99
Add To Cart
8Exhaust Piece
Part #: 877328
In stock
5 available
 $19.70
Add To Cart
9Gasket (C)
Part #: 877-326
Note: Till June, 1988
In stock
4 available
 $3.99
Add To Cart
9AGasket C
Part #: 877854
Note: Since July, 1988
In stock
11 available
 $2.99
Add To Cart
10Valve O-Ring
Part #: 872-821
Note: Till January, 1987
In stock
8 available
 $3.99
Add To Cart
11AExhaust Valve
Part #: 878-417
In stock
1 available
 $6.28
Add To Cart
12AHead Cap and Gasket Set
Part #: 877-307
Note: Includes figure 9A
In stock
11 available
 $41.99
Add To Cart
13O-Ring (1 AP-48)
Part #: 877368
In stock
25+ available
 $2.99
Add To Cart
Piston High Speed Steel Tip
Part #: 877-375
Ships in 14 - 20 business days
 $349.93
Add To Cart
Fig #ImgPart NameAvailabilityPrice
Piston Driver Assembly
Part #: 885915
Note: Includes figure 13
In stock
16 available
 $89.07
Add To Cart
15O-Ring S-90
Part #: 877316
In stock
25 available
 $2.99
Add To Cart
16Cylinder O-Ring (I.D 63.1)
Part #: 877312
In stock
22 available
 $2.99
Add To Cart
17Cylinder Plate
Part #: 877-318
In stock
2 available
 $10.04
Add To Cart
18Cylinder O-Ring (I.D 79.3)
Part #: 877-313
In stock
22 available
 $2.99
Add To Cart
19Cylinder
Part #: 884-068
In stock
4 available
 $57.90
Add To Cart
20Cylinder O-Ring (I.D 69.3)
Part #: 877314
In stock
13 available
 $2.99
Add To Cart
21Cylinder Ring
Part #: 877-317
In stock
9 available
 $2.99
Add To Cart
22Cylinder Spring
Part #: 877-321
In stock
4 available
 $2.99
Add To Cart
23Base Washer
Part #: 877322
In stock
1 available
 $3.99
Add To Cart
24Cylinder Guide
Part #: 877-310
Backorder:
Unavailable until 08/26/2015
 $25.37
Add To Cart
25Gasket (G)
Part #: 877327
In stock
21 available
 $1.99
Add To Cart
26B
Body (B)
Part #: 877-835
Ships in 14 - 20 business days
 $293.90
Add To Cart
27
Name Plate Obsolete - Not Available
Part #: 308-864
Discontinued
N/A
28Cylinder O-Ring (I.D 63.9)
Part #: 877315
In stock
12 available
 $2.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
29Cylinder Bumper Obsolete - Not Available
Part #: 877-319
Note: Till February, 1987
Discontinued
N/A
Piston Bumper
Part #: 878-303
In stock
9 available
 $41.99
Add To Cart
Piston Bumper (B)
Part #: 883511
In stock
20 available
 $16.82
Add To Cart
Piston Bumper
Part #: 878-303
In stock
9 available
 $41.99
Add To Cart
32Gasket (A)
Part #: 877-334
In stock
3 available
 $2.99
Add To Cart
33BHigh Tension Bolt M6X18 Obsolete - Limited Quantity
Part #: 888245
In stock
7 available
 $1.99
Add To Cart
36CGuard (A)
Part #: 878-419
In stock
2 available
 $6.28
Add To Cart
37Washer
Part #: 877402
In stock
6 available
 $3.99
Add To Cart
38
Nose
Part #: 884-076
Ships in 14 - 20 business days
 $300.64
Add To Cart
40Hex. Socket HD. Bolt M8X25 (10 Pcs.)
Part #: 949-760
In stock
9 available
 $5.92
Add To Cart
42Gasket (D)
Part #: 877331
In stock
3 available
 $2.99
Add To Cart
43ACap
Part #: 878-311
In stock
12 available
 $5.24
Add To Cart
44Spring Washer M5 (10 pcs.)
Part #: 949454
In stock
16 available
 $3.99
Add To Cart
45AHex. Socket Hd. Bolt M5 X 18 10 Pcs.
Part #: 949658
In stock
1 available
 $3.99
Add To Cart
46Dust Cap
Part #: 872-035
In stock
2 available
 $3.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
47Roll Pin D3X30 (10 Pcs.)
Part #: 949-866
In stock
15 available
 $3.99
Add To Cart
48Safety Bolt
Part #: 875-650
In stock
8 available
 $2.99
Add To Cart
49Spring
Part #: 877-365
In stock
16 available
 $2.99
Add To Cart
50Pushing Lever
Part #: 877-391Z
In stock
5 available
 $45.51
Add To Cart
51Nut M5 (Black)
Part #: 949555
In stock
5 available
 $2.99
Add To Cart
52Plunger Spring
Part #: 875-643
In stock
4 available
 $2.99
Add To Cart
53O-Ring P-4
Part #: 874436
In stock
18 available
 $2.99
Add To Cart
54APlunger (A)
Part #: 877-338
In stock
7 available
 $3.99
Add To Cart
55Valve Bushing
Part #: 877-337
In stock
4 available
 $15.40
Add To Cart
56O-Ring (S-12)
Part #: 875-638
In stock
25+ available
 $2.99
Add To Cart
57Trigger
Part #: 876203
In stock
9 available
 $3.99
Add To Cart
58Plunger (B)
Part #: 877-339
In stock
13 available
 $3.99
Add To Cart
59AValve Packing
Part #: 878734
In stock
25+ available
 $2.99
Add To Cart
60Urethane Ball (C) D7.14
Part #: 875645
In stock
5 available
 $4.24
Add To Cart
61Valve Plate
Part #: 875-644
In stock
2 available
 $3.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
62ATrigger Valve Bushing
Part #: 877-335
In stock
8 available
 $8.05
Add To Cart
63ATrigger Plunger
Part #: 878-121
In stock
12 available
 $3.99
Add To Cart
64Nail Feeder
Part #: 877393Z
In stock
7 available
 $54.66
Add To Cart
65Spring Shaft Obsolete - Not Available
Part #: 877-395Z
Note: Till January, 1987
Discontinued
N/A
65ANeedle Roller
Part #: 878-418
Note: Since February, 1987
In stock
18 available
 $2.99
Add To Cart
66ARIBBON SPRING SET
Part #: 878421
Note: Includes figure 65A
In stock
10 available
 $10.84
Add To Cart
67Nylon Nut M4
Part #: 876-465
In stock
3 available
 $3.99
Add To Cart
68Spring Washer M4 10 Pcs.
Part #: 949453
In stock
1 available
 $3.99
Add To Cart
69Magazine Assembly
Part #: 884-570
In stock
4 available
 $104.94
Add To Cart
70Sleeve
Part #: 876550
In stock
9 available
 $3.99
Add To Cart
71Hex. Socket Hd. Bolt M5 X 45 10 Pcs.
Part #: 949824
In stock
7 available
 $4.24
Add To Cart
72Hex. Socket HD. Bolt M5X25 (10 Pcs.)
Part #: 949-662
In stock
6 available
 $3.14
Add To Cart
73Washer M5 (10 Pcs.)
Part #: 949-424
In stock
1 available
 $3.99
Add To Cart
74Stop Lever
Part #: 877396Z
In stock
1 available
 $4.91
Add To Cart
75Collar
Part #: 877398
Ships in 14 - 20 business days
 $3.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
76Stopper Spring
Part #: 877-397
In stock
5 available
 $4.24
Add To Cart
77Hex. Socket HD. Bolt M4X15 (10 Pcs.)
Part #: 949-650
In stock
5 available
 $2.47
Add To Cart
78Plunger O-Ring
Part #: 874-820
In stock
19 available
 $2.99
Add To Cart
79Nylon Nut M5
Part #: 877-371
In stock
25+ available
 $1.99
Add To Cart
81Magazine Assembly
Part #: 884-570
Note: Includes figures 44, 67-71, 74-77 and 79
In stock
4 available
 $104.94
Add To Cart
83Warning Label
Part #: 884-070
In stock
2 available
 $1.74
Add To Cart
500Hex. Bar Wrench 6mm
Part #: 872422
In stock
2 available
 $1.31
Add To Cart
501Allen Wrench For M5 Screw
Part #: 944459
In stock
3 available
 $1.28
Add To Cart
502Hex. Bar Wrench 4MM
Part #: 944458
In stock
9 available
 $3.99
Add To Cart
503A
Eye Protector
Part #: 875769
Ships in 14 - 20 business days
 $12.35
Add To Cart
505
Caution Tag
Part #: 882-413
Ships in 14 - 20 business days
 $1.74
Add To Cart
506Leaflet
Part #: 882-414
Ships in 14 - 20 business days
 $1.74
Add To Cart
601
Piston High Speed Steel Tip
Part #: 877-375
Ships in 14 - 20 business days
 $349.93
Add To Cart
602Single Shot Parts
Part #: 876-762
In stock
2 available
 $88.43
Add To Cart
603Grease (Attolub No.2) 500G
Part #: 317-918
In stock
1 available
 $33.29
Add To Cart
Fig #ImgPart NameAvailabilityPrice
605Pin
Part #: 887768
In stock
5 available
 $1.79
Add To Cart
606Tape Optional
Part #: 888213
Backorder:
Unavailable until 08/28/2015
 $1.75
Add To Cart
607
Remote Fire Valve Obsolete - Not Available
Part #: 878-223
Discontinued
N/A
800O-Ring Overhaul Kit (Includes Grease)
Part #: 18000
In stock
5 available
 $31.62
Add To Cart

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Repair Stories
Symptom:
Broken Driver
Parts Used:
Part Number:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Entry Date:2014-02-13 12:37:34
5 of 12 customers found these instructions helpful
driving pin/shaft
So simple: take the four head bolts out, remove head, (careful with gasket) remove old piston with broken drive pin, lubricate new O ring on new piston, and slide it down the cylinder making sure the drive pin is oriented with the concave side toward the back of the gun. Install the four bolts. That\'s it.
Did these repair instructions help you?
Discussion
Discussion for the Hitachi NR83A 3-1/4" Full Head Nailer

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  • Subject:
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jamesr
Question: Remote Firing Valve

jamesr

what is a remote firing valve
chiselcreek
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
Reply: Air Leak

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
Tinkerdave
Reply: Air Leak

Tinkerdave

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
dizj1
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?
Tinkerdave
Reply: Leak

Tinkerdave

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
KTR
Reply: Leak

KTR

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
629260
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?
Tinkerdave
Reply: Rebuilding Hitachi Nr83aa- Rippe...

Tinkerdave

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.
americantoolman
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.
americantoolman
Reply: Hitachi NR83A Framing Nailer - P...

americantoolman

[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
Reply: Hitachi NR83A Framing Nailer - P...

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
americantoolman
Reply: Hitachi NR83A Framing Nailer - P...

americantoolman

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
Reply: Hitachi NR83A Framing Nailer - P...

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
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
fancyboxy