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Hitachi NR90AE 3-1/2" Round Head Framing Nailer Parts

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Fig #	Part #	Img	Part Name	Availability	Price	Qty
1	949-665		Hex. Socket HD. Bolt M5X14 (10 Pcs.)	Ships in 10 - 15 business days	$2.67
2	884-952		Head Guard	Ships in 10 - 15 business days	$13.78
3	884-986		Sheet	Ships in 10 - 15 business days	$3.26
4	878-877		Hex. Socket HD. Bolt (W/Flange) M6X30	Ships in 10 - 15 business days	$0.96
5	884-951		Exhaust Cover	Ships in 10 - 15 business days	$35.98
6	884-953		Gasket (A)	Ships in 10 - 15 business days	$4.91
7	884-949		Head Valve Spring	Ships in 10 - 15 business days	$4.91
8	884-947		O-Ring (LD 49.4)	Ships in 10 - 15 business days	$1.64
9	884-946		Head Valve	Ships in 10 - 15 business days	$20.30
10	884-948		O-Ring (LD 59.4)	Ships in 10 - 15 business days	$1.64
11	884-950		Exhaust Valve Rubber	Ships in 10 - 15 business days	$13.78
12	884-958		Piston O-Ring	Ships in 10 - 15 business days	$1.64
13	885-918		Piston	Ships in 10 - 15 business days	$78.62
14	884-945		Valve Rubber	Ships in 10 - 15 business days	$11.11
15A	884-941		Cylinder	Ships in 10 - 15 business days	$62.24
Fig #	Part #	Img	Part Name	Availability	Price
16	884-942		O-Ring (LD 59.6)	Ships in 10 - 15 business days	$1.64
17	884-944		Cylinder Plate	Ships in 10 - 15 business days	$3.26
18	884-943		O-Ring (LD 94.6)	Ships in 10 - 15 business days	$3.26
19	877-317		Cylinder Ring	Ships in 10 - 15 business days	$1.68
20	949-539		Roll Pin D3X25 (10 Pcs.)	Ships in 10 - 15 business days	$2.67
21	884-975		Roll Pin D3X32	Ships in 10 - 15 business days	$1.64
22	955-479		Retaining Ring (E-Type) For D6 Shaft	Ships in 10 - 15 business days	$1.26
24	884-940		Body Assy	Ships in 10 - 15 business days	$91.72
25	884-956		Protector	Ships in 10 - 15 business days	$7.22
26	876-205		Washer	Ships in 10 - 15 business days	$1.00
27	884-976		Pushing Lever Cover (A)	Ships in 10 - 15 business days	$1.64
28	885-521		Nose	Ships in 10 - 15 business days	$131.02
29	306-437		Nylock Hex. Socket HD. Bolt M8X30	Ships in 10 - 15 business days	$1.47
30	884-959		Piston Bumper	In stock 3 available	$19.01
31	884-989		O-Ring (I.D 60)	Ships in 10 - 15 business days	$1.64
Fig #	Part #	Img	Part Name	Availability	Price
32	877-371		Nylon Nut M5	Ships in 10 - 15 business days	$1.00
33	884-985		Nose Rubber	Ships in 10 - 15 business days	$1.64
34	884-970		Pushing Lever (A)	Ships in 10 - 15 business days	$19.64
35	949-670		Hex. Socket HD. Bolt M6X22 (10 Pcs.)	Ships in 10 - 15 business days	$3.55
36	884-987		Grip Rubber (B)	Ships in 10 - 15 business days	$4.91
39	883-678		Gasket (B)	Ships in 10 - 15 business days	$3.38
40	884-954		Cap	Ships in 10 - 15 business days	$6.57
41	949-821		Hex. Socket HD. Bolt M5X16 (10 Pcs.)	Ships in 10 - 15 business days	$2.82
42	872-035		Dust Cap	Ships in 10 - 15 business days	$0.99
43	959-155		Steel Ball D3.97 (10 Pcs.)	Ships in 10 - 15 business days	$0.99
44	982-454		Spring (C)	Ships in 10 - 15 business days	$0.99
45	885-658		Change Knob (C)	Ships in 10 - 15 business days	$14.28
46	884-988		Trigger Arm (C)	Ships in 10 - 15 business days	$3.26
47	884-969		Pushing Lever Guide	Ships in 10 - 15 business days	$3.26
48	881-951		Roll Pin D2.5X16	Ships in 10 - 15 business days	$1.68
Fig #	Part #	Img	Part Name	Availability	Price
49	884-967		Trigger (C)	Ships in 10 - 15 business days	$6.57
50	883-302		Pushing Lever Spring (B)	Ships in 10 - 15 business days	$1.64
51	883-305		Pushing Lever Spring (A)	Ships in 10 - 15 business days	$1.64
52	884-972		Pushing Lever (C)	Ships in 10 - 15 business days	$4.91
53	884-974		Adjuster	Ships in 10 - 15 business days	$1.64
54	880-093		Roll Pin D2X16	Ships in 10 - 15 business days	$1.00
55	882-890		Adjuster Spring	Ships in 10 - 15 business days	$1.68
56	884-973		Adjuster Plate (C)	Ships in 10 - 15 business days	$1.64
57	882-886		Adjuster Plate (A)	Ships in 10 - 15 business days	$3.33
58	884-971		Pushing Lever (B)	Ships in 10 - 15 business days	$6.57
59	872-822		O-Ring (S-5)	Ships in 10 - 15 business days	$3.01
60	872-971		Retaining Ring (E-Type) For D3 Shaft	In stock 7 available	$1.00
61	877-763		Feed Piston O-Ring (I.D.14)	Ships in 10 - 15 business days	$1.00
62	884-963		Valve Bushing (B)	Ships in 10 - 15 business days	$1.64
63	873-570		O-Ring (P-18)	Ships in 10 - 15 business days	$1.35
Fig #	Part #	Img	Part Name	Availability	Price
64	676-531		O-Ring (P-7)	Ships in 10 - 15 business days	$1.09
65	884-964		Valve Piston	Ships in 10 - 15 business days	$1.64
66	872-654		O-Ring (1AP-10)	Ships in 10 - 15 business days	$1.47
67	884-966		Plunger Spring	Ships in 10 - 15 business days	$1.64
68	878-888		O-Ring (I.D 1.8)	Ships in 10 - 15 business days	$1.00
69	884-965		Plunger	Ships in 10 - 15 business days	$4.91
70	884-962		Valve Bushing (A)	Ships in 10 - 15 business days	$1.64
71	885-522		Handle Arm	Ships in 10 - 15 business days	$9.20
72	963-837		Nylon Nut M6	Ships in 10 - 15 business days	$1.00
73	883-499		Sleeve	Ships in 10 - 15 business days	$1.68
74	885-523		Magazine Cover	Ships in 10 - 15 business days	$9.20
75	885-524		Nail Rail	Ships in 10 - 15 business days	$7.85
76	885-525		Magazine	Ships in 10 - 15 business days	$98.22
77	984-443		Hex. Socket HD. Bolt (W/Flange) M6X12	Ships in 10 - 15 business days	$1.07
78	885-526		Nail Feeder (A)	Ships in 10 - 15 business days	$27.50
Fig #	Part #	Img	Part Name	Availability	Price
79	949-547		Roll Pin D4X36 (10 Pcs.)	Ships in 10 - 15 business days	$4.09
80	885-527		Nail Feeder (B)	Ships in 10 - 15 business days	$4.91
81	943-364		Needle Roller D4X20	Ships in 10 - 15 business days	$1.05
82	883-503		Ribbon Spring	Ships in 10 - 15 business days	$9.47
83	885-528		Feeder Spring	Ships in 10 - 15 business days	$1.64
84	949-749		Roll Pin D3X8 (10 Pcs.)	Ships in 10 - 15 business days	$2.05
85	885-529		Label (B)	Ships in 10 - 15 business days	$3.26
87	885-530		Nail Feeder Assy	Ships in 10 - 15 business days	$45.83
88	876-465		Nylon Nut M4	Ships in 10 - 15 business days	$0.99
89	885-717		Magazine Plate	Ships in 10 - 15 business days	$3.26
90	951-039		Machine Screw (Wisp. Washer) M4X12	Ships in 10 - 15 business days	$1.05
91	981-317		O-Ring (S-4)	Ships in 10 - 15 business days	$0.99
501	875769		Eye Protector	Ships in 10 - 15 business days	$11.87
601	881-768		Grip Tape (A)	Ships in 10 - 15 business days	$5.38
602	880-407		Tape	Ships in 10 - 15 business days	$1.68
Fig #	Part #	Img	Part Name	Availability	Price

Nailer Parts

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Repair Videos

Articles

Popular Parts

Cylinder Ring $1.68	Feed Piston O-Ring (I.D.14) $1.00
Nylon Nut M5 $1.00	Machine Screw (Wisp. Washer) M4X12 $1.05
Piston Bumper $19.01	O-Ring (I.D 1.8) $1.00
Retaining Ring (E-Type) For D3 Shaft $1.00	Grip Tape (A) $5.38

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Discussion

Discussion for the Hitachi NR90AE 3-1/2" Round Head Framing Nailer

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Question: Hitachi NR-90AE

wildcherry

My Hitachi framing nailer is leaking air from just under the exhaust cover. Any guess as to which O-Ring (or gasket) is bad? Is it safe to use it this way (to finish a project) for a short while until I get the parts?

Reply: Hitachi NR-90AE

tony

Yes finish the job I had on that leaked air for six weeks until I had time to fix it

Question: Rcksha

rcksha

Hitachi NR90AE

I just replaced all the o-rings on the trigger assembly due to air leaking around the trigger. I can't get it to funtion at all now. I tried to be real careful of placement of parts and used air tool oil on the rings. can you help?

Question: Trigger Parts For Hitachi NR 90A...

590138

I just "inherited" a Hitachi NR 90AE round head framing nailer. The trigger lever is missing although it will still shoot since all of the internal parts of the trigger are still functional. There is a small round headed pin that I can see and this is what I have to press for the gun to shoot. I'm not sure of the additional parts needed to fix it besides the trigger (884-967) piece itself. I'm attaching pictures (thousand words) to give a better idea.
Thanks in advance for any input.

Review: Hitachi - NR90AE Garbage

richard

I bought 2 of the nr90ae from Lowes. I had them both break the same way so I took them back. One tore up in a week with the same problem. A couple of days later the other one took a dive the same problem. The o-ring breaks and the drive pin twisted sideways and broke on both the guns. I have never had so many problems with a nailer until these came into my possession.