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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.

5331-00-851-6673 (54-66-5045)

NIIN: 00-851-6673
In stock
NSN: 5331-00-851-6673
FSC Code: 5331
MPN: 54665045

5331-01-470-4567 (200859-100)

NIIN: 01-470-4567
In stock
NSN: 5331-01-470-4567
FSC Code: 5331
MPN: 200859100

5331-01-091-6079 (54-66-7212)

NIIN: 01-091-6079
In stock
NSN: 5331-01-091-6079
FSC Code: 5331
MPN: 54667212

5331-01-143-6312 (54-66-5016)

NIIN: 01-143-6312
In stock
NSN: 5331-01-143-6312
FSC Code: 5331
MPN: 54665016

5331-01-272-6458 (54-66-5346)

NIIN: 01-272-6458
In stock
NSN: 5331-01-272-6458
FSC Code: 5331
MPN: 54665346

5331-25-150-2461 (200-841)

NIIN: 25-150-2461
In stock
NSN: 5331-25-150-2461
FSC Code: 5331
MPN: 200841

5331-00-883-0592 (54-66-4225)

NIIN: 00-883-0592
In stock
NSN: 5331-00-883-0592
FSC Code: 5331
MPN: 54664225

5331-01-090-9498 (54-66-2008)

NIIN: 01-090-9498
In stock
NSN: 5331-01-090-9498
FSC Code: 5331
MPN: 54662008

5331-01-090-7033 (54-66-2224)

NIIN: 01-090-7033
In stock
NSN: 5331-01-090-7033
FSC Code: 5331
MPN: 54662224

5331-01-128-8977 (54-66-2214)

NIIN: 01-128-8977
In stock
NSN: 5331-01-128-8977
FSC Code: 5331
MPN: 54662214

5331-01-090-9500 (54-66-2220)

NIIN: 01-090-9500
In stock
NSN: 5331-01-090-9500
FSC Code: 5331
MPN: 54662220

5331-01-091-3327 (54-66-2015)

NIIN: 01-091-3327
In stock
NSN: 5331-01-091-3327
FSC Code: 5331
MPN: 54662015

5331-01-090-9499 (54-66-2023)

NIIN: 01-090-9499
In stock
NSN: 5331-01-090-9499
FSC Code: 5331
MPN: 54662023

5331-01-024-7092 (54-66-2038)

NIIN: 01-024-7092
In stock
NSN: 5331-01-024-7092
FSC Code: 5331
MPN: 54662038

5331-01-432-9795 (200-813)

NIIN: 01-432-9795
In stock
NSN: 5331-01-432-9795
FSC Code: 5331
MPN: 200813

5331-01-475-2752 (20-08-1416)

NIIN: 01-475-2752
In stock
NSN: 5331-01-475-2752
FSC Code: 5331
MPN: 20081416

5331-01-463-9889 (2007N7)

NIIN: 01-463-9889
In stock
NSN: 5331-01-463-9889
FSC Code: 5331
MPN: 2007N7

5331-01-498-9531 (2-007V1226-75)

NIIN: 01-498-9531
In stock
NSN: 5331-01-498-9531
FSC Code: 5331
MPN: 2007V122675

5331-01-298-4738 (546229-01)

NIIN: 01-298-4738
In stock
NSN: 5331-01-298-4738
FSC Code: 5331
MPN: 54622901

5331-01-298-4739 (546229-16)

NIIN: 01-298-4739
In stock
NSN: 5331-01-298-4739
FSC Code: 5331
MPN: 54622916

5331-01-466-9139 (2007N552-90)

NIIN: 01-466-9139
In stock
NSN: 5331-01-466-9139
FSC Code: 5331
MPN: 2007N55290

5331-01-341-2874 (200670-10)

NIIN: 01-341-2874
In stock
NSN: 5331-01-341-2874
FSC Code: 5331
MPN: 20067010

5331-01-281-2339 (54-60-3855)

NIIN: 01-281-2339
In stock
NSN: 5331-01-281-2339
FSC Code: 5331
MPN: 54603855

5331-01-066-3546 (54-60-0873)

NIIN: 01-066-3546
In stock
NSN: 5331-01-066-3546
FSC Code: 5331
MPN: 54600873

5331-99-147-2442 (200-645-4470)

NIIN: 99-147-2442
In stock
NSN: 5331-99-147-2442
FSC Code: 5331
MPN: 2006454470

5331-00-180-9363 (5-457N304-7)

NIIN: 00-180-9363
In stock
NSN: 5331-00-180-9363
FSC Code: 5331
MPN: 5457N3047

5331-99-282-6412 (200-617-4490)

NIIN: 99-282-6412
In stock
NSN: 5331-99-282-6412
FSC Code: 5331
MPN: 2006174490

5331-01-362-1895 (5605-1118-001)

NIIN: 01-362-1895
In stock
NSN: 5331-01-362-1895
FSC Code: 5331
MPN: 56051118001

5331-01-216-6649 (54545-02)

NIIN: 01-216-6649
In stock
NSN: 5331-01-216-6649
FSC Code: 5331
MPN: 5454502

5331-01-056-5059 (5-453)

NIIN: 01-056-5059
In stock
NSN: 5331-01-056-5059
FSC Code: 5331
MPN: 5453

5331-01-371-4955 (5605-6214-001)

NIIN: 01-371-4955
In stock
NSN: 5331-01-371-4955
FSC Code: 5331
MPN: 56056214001

5331-01-265-8991 (5-450N756-75)

NIIN: 01-265-8991
In stock
NSN: 5331-01-265-8991
FSC Code: 5331
MPN: 5450N75675

5331-01-167-0223 (5-4503-5)

NIIN: 01-167-0223
In stock
NSN: 5331-01-167-0223
FSC Code: 5331
MPN: 545035

5331-01-475-2755 (20-05-1416)

NIIN: 01-475-2755
In stock
NSN: 5331-01-475-2755
FSC Code: 5331
MPN: 20051416

5331-99-416-2031 (200-471-4470)

NIIN: 99-416-2031
In stock
NSN: 5331-99-416-2031
FSC Code: 5331
MPN: 2004714470

5331-01-210-7349 (544713-12)

NIIN: 01-210-7349
In stock
NSN: 5331-01-210-7349
FSC Code: 5331
MPN: 54471312

5331-00-850-6926 (544-6532-003)

NIIN: 00-850-6926
In stock
NSN: 5331-00-850-6926
FSC Code: 5331
MPN: 5446532003

5331-99-562-1986 (200/436/5575)

NIIN: 99-562-1986
In stock
NSN: 5331-99-562-1986
FSC Code: 5331
MPN: 2004365575

5331-01-475-2757 (20-04-1416)

NIIN: 01-475-2757
In stock
NSN: 5331-01-475-2757
FSC Code: 5331
MPN: 20041416

5331-99-701-8509 (BS1806-358NBRM70)

NIIN: 99-701-8509
In stock
NSN: 5331-99-701-8509
FSC Code: 5331
MPN: BS1806358NBRM70

5331-01-497-3441 (UFR-23557)

NIIN: 01-497-3441
In stock
NSN: 5331-01-497-3441
FSC Code: 5331
MPN: UFR23557

5331-99-821-1268 (200/333/5575)

NIIN: 99-821-1268
In stock
NSN: 5331-99-821-1268
FSC Code: 5331
MPN: 2003335575

5331-01-452-6654 (200-32)

NIIN: 01-452-6654
In stock
NSN: 5331-01-452-6654
FSC Code: 5331
MPN: 20032

5331-00-304-9263 (544002-62)

NIIN: 00-304-9263
In stock
NSN: 5331-00-304-9263
FSC Code: 5331
MPN: 54400262

5331-01-475-2760 (20-03-1416)

NIIN: 01-475-2760
In stock
NSN: 5331-01-475-2760
FSC Code: 5331
MPN: 20031416

5331-01-264-4238 (5-438N756-75)

NIIN: 01-264-4238
In stock
NSN: 5331-01-264-4238
FSC Code: 5331
MPN: 5438N75675

5331-01-364-9902 (2002AS804-1)

NIIN: 01-364-9902
In stock
NSN: 5331-01-364-9902
FSC Code: 5331
MPN: 2002AS8041

5331-01-164-3460 (54370-6)

NIIN: 01-164-3460
In stock
NSN: 5331-01-164-3460
FSC Code: 5331
MPN: 543706