Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-01-597-3904 (57474000)

NIIN: 01-597-3904
In stock
NSN: 5331-01-597-3904
FSC Code: 5331
MPN: 57474000

5331-01-597-3507 (57380000)

NIIN: 01-597-3507
In stock
NSN: 5331-01-597-3507
FSC Code: 5331
MPN: 57380000

5331-01-597-3208 (5233T54)

NIIN: 01-597-3208
In stock
NSN: 5331-01-597-3208
FSC Code: 5331
MPN: 5233T54

5331-01-597-2282 (P528283)

NIIN: 01-597-2282
In stock
NSN: 5331-01-597-2282
FSC Code: 5331
MPN: P528283

5331-01-596-8727 (7-57-225)

NIIN: 01-596-8727
In stock
NSN: 5331-01-596-8727
FSC Code: 5331
MPN: 757225

5331-01-597-7255 (0805247-156)

NIIN: 01-597-7255
In stock
NSN: 5331-01-597-7255
FSC Code: 5331
MPN: 0805247156

5331-01-597-3441 (50021)

NIIN: 01-597-3441
In stock
NSN: 5331-01-597-3441
FSC Code: 5331
MPN: 50021

5331-01-597-2164 (B11103 ITEM 3 CP)

NIIN: 01-597-2164
In stock
NSN: 5331-01-597-2164
FSC Code: 5331
MPN: B11103ITEM3CP

5331-01-597-1598 (37466N PL ITEM 41)

NIIN: 01-597-1598
In stock
NSN: 5331-01-597-1598
FSC Code: 5331
MPN: 37466NPLITEM41

5331-01-597-0871 (25KP685)

NIIN: 01-597-0871
In stock
NSN: 5331-01-597-0871
FSC Code: 5331
MPN: 25KP685

5331-01-597-0880 (25KP678)

NIIN: 01-597-0880
In stock
NSN: 5331-01-597-0880
FSC Code: 5331
MPN: 25KP678

5331-01-596-8733 (100051)

NIIN: 01-596-8733
In stock
NSN: 5331-01-596-8733
FSC Code: 5331
MPN: 100051

5331-01-596-8728 (100329)

NIIN: 01-596-8728
In stock
NSN: 5331-01-596-8728
FSC Code: 5331
MPN: 100329

5331-01-596-8729 (100315)

NIIN: 01-596-8729
In stock
NSN: 5331-01-596-8729
FSC Code: 5331
MPN: 100315

5331-01-596-7812 (C0700072070)

NIIN: 01-596-7812
In stock
NSN: 5331-01-596-7812
FSC Code: 5331
MPN: C0700072070

5331-01-597-6615 (250017-904)

NIIN: 01-597-6615
In stock
NSN: 5331-01-597-6615
FSC Code: 5331
MPN: 250017904

5331-01-597-4828 (6110221-N)

NIIN: 01-597-4828
In stock
NSN: 5331-01-597-4828
FSC Code: 5331
MPN: 6110221N

5331-01-597-3943 (3102189)

NIIN: 01-597-3943
In stock
NSN: 5331-01-597-3943
FSC Code: 5331
MPN: 3102189

5331-01-597-3911 (57329000)

NIIN: 01-597-3911
In stock
NSN: 5331-01-597-3911
FSC Code: 5331
MPN: 57329000

5331-01-597-3740 (2010 C87370)

NIIN: 01-597-3740
In stock
NSN: 5331-01-597-3740
FSC Code: 5331
MPN: 2010C87370

5331-01-597-2051 (V0894 5-585)

NIIN: 01-597-2051
In stock
NSN: 5331-01-597-2051
FSC Code: 5331
MPN: V08945585

5331-01-597-2013 (064019-031)

NIIN: 01-597-2013
In stock
NSN: 5331-01-597-2013
FSC Code: 5331
MPN: 064019031

5331-01-597-2018 (064019-065)

NIIN: 01-597-2018
In stock
NSN: 5331-01-597-2018
FSC Code: 5331
MPN: 064019065

5331-01-596-8372 (NAS1611-007A)

NIIN: 01-596-8372
In stock
NSN: 5331-01-596-8372
FSC Code: 5331
MPN: NAS1611007A

5331-01-596-7821 (C6205615420)

NIIN: 01-596-7821
In stock
NSN: 5331-01-596-7821
FSC Code: 5331
MPN: C6205615420

5331-01-597-3200 (5233T58)

NIIN: 01-597-3200
In stock
NSN: 5331-01-597-3200
FSC Code: 5331
MPN: 5233T58

5331-01-597-1877 (2607436)

NIIN: 01-597-1877
In stock
NSN: 5331-01-597-1877
FSC Code: 5331
MPN: 2607436

5331-01-597-1860 (M22050-3-446)

NIIN: 01-597-1860
In stock
NSN: 5331-01-597-1860
FSC Code: 5331
MPN: M220503446

5331-01-597-0739 (17201PC18)

NIIN: 01-597-0739
In stock
NSN: 5331-01-597-0739
FSC Code: 5331
MPN: 17201PC18

5331-01-597-0297 (0353769)

NIIN: 01-597-0297
In stock
NSN: 5331-01-597-0297
FSC Code: 5331
MPN: 0353769

5331-01-596-7470 (2817-5725-01)

NIIN: 01-596-7470
In stock
NSN: 5331-01-596-7470
FSC Code: 5331
MPN: 2817572501

5331-01-597-3906 (57396000)

NIIN: 01-597-3906
In stock
NSN: 5331-01-597-3906
FSC Code: 5331
MPN: 57396000

5331-01-597-3084 (9464K69)

NIIN: 01-597-3084
In stock
NSN: 5331-01-597-3084
FSC Code: 5331
MPN: 9464K69

5331-01-597-2471 (AT216)

NIIN: 01-597-2471
In stock
NSN: 5331-01-597-2471
FSC Code: 5331
MPN: AT216

5331-01-597-2072 (D3800-A066 ITEM 3)

NIIN: 01-597-2072
In stock
NSN: 5331-01-597-2072
FSC Code: 5331
MPN: D3800A066ITEM3

5331-01-597-1592 (37466N PL ITEM 37)

NIIN: 01-597-1592
In stock
NSN: 5331-01-597-1592
FSC Code: 5331
MPN: 37466NPLITEM37

5331-01-597-0296 (0319528)

NIIN: 01-597-0296
In stock
NSN: 5331-01-597-0296
FSC Code: 5331
MPN: 0319528

5331-01-596-8736 (M716A)

NIIN: 01-596-8736
In stock
NSN: 5331-01-596-8736
FSC Code: 5331
MPN: M716A

5331-01-596-8730 (100310)

NIIN: 01-596-8730
In stock
NSN: 5331-01-596-8730
FSC Code: 5331
MPN: 100310

5331-01-596-6684 (US76068-01-2-2)

NIIN: 01-596-6684
In stock
NSN: 5331-01-596-6684
FSC Code: 5331
MPN: US760680122

5331-01-596-5441 (901001-90)

NIIN: 01-596-5441
In stock
NSN: 5331-01-596-5441
FSC Code: 5331
MPN: 90100190

5331-01-596-5162 (17801PC6)

NIIN: 01-596-5162
In stock
NSN: 5331-01-596-5162
FSC Code: 5331
MPN: 17801PC6

5331-01-596-4505 (10002-010)

NIIN: 01-596-4505
In stock
NSN: 5331-01-596-4505
FSC Code: 5331
MPN: 10002010

5331-01-597-2269 (P527389)

NIIN: 01-597-2269
In stock
NSN: 5331-01-597-2269
FSC Code: 5331
MPN: P527389

5331-01-597-1875 (M22050-3-449)

NIIN: 01-597-1875
In stock
NSN: 5331-01-597-1875
FSC Code: 5331
MPN: M220503449

5331-01-597-0866 (12KP565)

NIIN: 01-597-0866
In stock
NSN: 5331-01-597-0866
FSC Code: 5331
MPN: 12KP565

5331-01-596-2480 (0663215200)

NIIN: 01-596-2480
In stock
NSN: 5331-01-596-2480
FSC Code: 5331
MPN: 0663215200

5331-01-596-2490 (NAS1611-139)

NIIN: 01-596-2490
In stock
NSN: 5331-01-596-2490
FSC Code: 5331
MPN: NAS1611139