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Description
12339407 CLUTCH, FAN, HYDRAULICPart #: 12339407 Description: CLUTCH, FAN, HYDRAULIC NSN: 2930 01 168 7870 ; 2930011687870 Pos. # Image NSN Part Number Description 1 2930 01 168 7870 1090 06404 01 CLUTCH, FAN, HYDRAULIC 2 5310 01 194 0481 3029 01371 01 . NUT,SELF LOCKING 3 5310 01 189 8468 5740253 . WASHER,FLAT 4 2930 01 189 1744 4043 38443 01 . CYLINDER ASSEMBLY, FAN CLUTCH 5 5331 01 192 8892 3018 01265 01 . O RING 6 5330 01 247 8438 3018 01339 01 . SEAL,DUST 7 4040 38442 01 .
Part #: 12339407
Description: CLUTCH, FAN, HYDRAULIC
NSN: 2930-01-168-7870 ; 2930011687870
| Pos. # | Image | NSN | Part Number | Description |
| 1 | 2930-01-168-7870 | 1090-06404-01 | CLUTCH, FAN, HYDRAULIC | |
| 2 | 5310-01-194-0481 | 3029-01371-01 | .NUT,SELF-LOCKING | |
| 3 | 5310-01-189-8468 | 5740253 | .WASHER,FLAT | |
| 4 | 2930-01-189-1744 | 4043-38443-01 | .CYLINDER ASSEMBLY, FAN CLUTCH | |
| 5 | 5331-01-192-8892 | 3018-01265-01 | .O-RING | |
| 6 | 5330-01-247-8438 | 3018-01339-01 | .SEAL,DUST | |
| 7 | 4040-38442-01 | .HOUSING ASSEMBLY | ||
| 8 | 5331-01-195-1500 | 9002-00741-58 | .O-RING | |
| 9 | 5331-01-194-8966 | 9002-00181-48 | .O-RING | |
| 10 | 5360-01-190-6214 | 5740278 | .SPRING,HELICAL, COMPRESSION | |
| 11 | 5307-01-190-5854 | 3051-01405-01 | .STUD,PLAIN 3/8-16X1.16 | |
| 12 | 5330-01-252-0461 | 3018-01425-01 | .SEAL,PLAIN ENCASED | |
| 13 | 5310-00-637-9561 | MS35338-46 | .WASHER,LOCK 3/8 | |
| 14 | 5310-01-190-4607 | 3030-00364-01 | .NUT,PLAIN,HEXAGON 3/8-16 | |
| 15 | 4073-38424-01 | .LINING,FAN CLUTCH | ||
| 16 | 5305-00-052-6456 | MS16996-10 | .SCREW,CAP,SOCKET HEAD | |
| 17 | 2930-01-189-8643 | 4026-38368-01 | .LINING,FRICTION | |
| 18 | 4079-38441-01 | .SHAFT ASSEMBLY |
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4.7 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Great for home office
Color: Grey, Color: Grey
This was a great replacement to the chair I use when I work from home, padding is firm and comfortable so I have no issue sitting on it for hours, the arm rest are foldable so is very convenient when my dogs are in co worker duty.
Very easy to put together and it feels very firm and stable.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Thick seat cushion
Color: Grey
This double-layer seat cushion is so comfortable! Before, my lower back would ache after just an hour on a hard bench, but now I can work in this chair for most of the day without feeling tired. The PU leather has a great texture, looks high-end, and is incredibly easy to maintain—just wipe it down with a cloth when it gets dirty. It feels smooth and breathable. The 360-degree swivel is very smooth, making it convenient to reach for documents in the office. The casters roll quietly and won’t scratch the floor. For anyone who spends a lot of time working at a desk, the comfort level at this price point is absolutely worth it. I highly recommend it.
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Reviewed in the United States on March 26, 2026
★★★★★ 3
Meh
Color: Black
It's ok. I got it because it looked like it has more cushion and might be more comfortable. Nope. It's the same comfort level as different chairs. My reer still goes numb and gets uncomfortable in this chair. Also, where your arms sit, the chair arms are slightly curved upwards and it causes my chair to be unable to fit under my desk. If they weren't slightly curved, that wouldn't happen. It's just another chair, nothing spectacular.
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Reviewed in the United States on June 13, 2026
★★★★★ 5
Solid quality and comfortable
Color: Light Grey, Color: Light Grey
Wonderful quality chair, solid and sturdy, it was easy to put together, the directions were very clear and all the pieces fit together perfectly without issue. It is made of breathable material and I love that the arms flip up easily. You can raise it up or down and it has an adjustable headrest. It also has adjustable lumber support. It rolls easily and the color is the only reason I might return, I think I want a different one instead. The chair is comfortable for a petite person but equally comfortable for a tall person. We have both in our family and it is great for both. The armrests are comfortable and there is really nothing negative to say about this chair at all. Considering the quality, it is a great value for the money.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Comfortable and Sturdy Office Chair
Color: Black, Color: Black
I’ve been very happy with this chair so far. The quality feels solid, and the materials look durable. The color matches the listing perfectly and fits nicely with my office setup. It’s very comfortable for long periods of sitting, with good support for my back and shoulders.
Assembly was straightforward, and all the parts were included. The chair looks modern and professional, and the overall appearance exceeded my expectations. It feels stable and secure, even when reclining or moving around. The wheels roll smoothly, and the chair is easy to adjust for a comfortable fit.
Overall, this is a well-made, comfortable, and attractive office chair that offers great value for the price.
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Reviewed in the United States on June 6, 2026