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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.

5331-00-291-4845 (3627-9-03-70)

NIIN: 00-291-4845
In stock
NSN: 5331-00-291-4845
FSC Code: 5331
MPN: 362790370

5331-01-352-1160 (120-00365-000)

NIIN: 01-352-1160
In stock
NSN: 5331-01-352-1160
FSC Code: 5331
MPN: 12000365000

5331-99-408-4880 (BS1806@SIZE338)

NIIN: 99-408-4880
In stock
NSN: 5331-99-408-4880
FSC Code: 5331
MPN: BS1806SIZE338

5331-00-580-5400 (3627-24-11-70)

NIIN: 00-580-5400
In stock
NSN: 5331-00-580-5400
FSC Code: 5331
MPN: 3627241170

5331-00-599-2459 (3627-6-04-60)

NIIN: 00-599-2459
In stock
NSN: 5331-00-599-2459
FSC Code: 5331
MPN: 362760460

5331-00-584-2278 (3627-3-11-70)

NIIN: 00-584-2278
In stock
NSN: 5331-00-584-2278
FSC Code: 5331
MPN: 362731170

5331-00-805-6746 (3627-13-11-70)

NIIN: 00-805-6746
In stock
NSN: 5331-00-805-6746
FSC Code: 5331
MPN: 3627131170

5331-00-709-9807 (3627-2-11-90)

NIIN: 00-709-9807
In stock
NSN: 5331-00-709-9807
FSC Code: 5331
MPN: 362721190

5331-00-599-2813 (3627-23-04-70)

NIIN: 00-599-2813
In stock
NSN: 5331-00-599-2813
FSC Code: 5331
MPN: 3627230470

5331-00-291-4839 (3627-20-07-70)

NIIN: 00-291-4839
In stock
NSN: 5331-00-291-4839
FSC Code: 5331
MPN: 3627200770

5331-01-523-4939 (12.250X.103N70)

NIIN: 01-523-4939
In stock
NSN: 5331-01-523-4939
FSC Code: 5331
MPN: 12250X103N70

5331-01-289-4361 (36240-N0022)

NIIN: 01-289-4361
In stock
NSN: 5331-01-289-4361
FSC Code: 5331
MPN: 36240N0022

5331-01-252-7143 (36240-N0036)

NIIN: 01-252-7143
In stock
NSN: 5331-01-252-7143
FSC Code: 5331
MPN: 36240N0036

5331-01-252-7142 (36240-V0114)

NIIN: 01-252-7142
In stock
NSN: 5331-01-252-7142
FSC Code: 5331
MPN: 36240V0114

5331-01-154-9466 (36240-N2012)

NIIN: 01-154-9466
In stock
NSN: 5331-01-154-9466
FSC Code: 5331
MPN: 36240N2012

5331-01-484-7240 (563-7067896-71)

NIIN: 01-484-7240
In stock
NSN: 5331-01-484-7240
FSC Code: 5331
MPN: 563706789671

5331-01-205-5032 (3620533-1)

NIIN: 01-205-5032
In stock
NSN: 5331-01-205-5032
FSC Code: 5331
MPN: 36205331

5331-01-205-5033 (3620403-1)

NIIN: 01-205-5033
In stock
NSN: 5331-01-205-5033
FSC Code: 5331
MPN: 36204031

5331-01-420-3671 (A0625-00)

NIIN: 01-420-3671
In stock
NSN: 5331-01-420-3671
FSC Code: 5331
MPN: A062500

5331-01-439-9264 (11F-CB7)

NIIN: 01-439-9264
In stock
NSN: 5331-01-439-9264
FSC Code: 5331
MPN: 11FCB7

5331-00-618-4658 (36-1696ITEM15)

NIIN: 00-618-4658
In stock
NSN: 5331-00-618-4658
FSC Code: 5331
MPN: 361696ITEM15

5331-01-480-8870 (119-8784)

NIIN: 01-480-8870
In stock
NSN: 5331-01-480-8870
FSC Code: 5331
MPN: 1198784

5331-01-516-2048 (119-8330)

NIIN: 01-516-2048
In stock
NSN: 5331-01-516-2048
FSC Code: 5331
MPN: 1198330

5331-01-269-2781 (3612164-2)

NIIN: 01-269-2781
In stock
NSN: 5331-01-269-2781
FSC Code: 5331
MPN: 36121642

5331-01-474-1517 (119-7845)

NIIN: 01-474-1517
In stock
NSN: 5331-01-474-1517
FSC Code: 5331
MPN: 1197845

5331-01-498-3613 (119773-18350)

NIIN: 01-498-3613
In stock
NSN: 5331-01-498-3613
FSC Code: 5331
MPN: 11977318350

5331-01-498-4057 (119771-90320)

NIIN: 01-498-4057
In stock
NSN: 5331-01-498-4057
FSC Code: 5331
MPN: 11977190320

5331-01-214-4859 (36121-03331)

NIIN: 01-214-4859
In stock
NSN: 5331-01-214-4859
FSC Code: 5331
MPN: 3612103331

5331-01-547-0529 (119609-32040)

NIIN: 01-547-0529
In stock
NSN: 5331-01-547-0529
FSC Code: 5331
MPN: 11960932040

5331-01-229-9992 (361-1226C031A13)

NIIN: 01-229-9992
In stock
NSN: 5331-01-229-9992
FSC Code: 5331
MPN: 3611226C031A13

5331-99-666-7926 (119574-18810)

NIIN: 99-666-7926
In stock
NSN: 5331-99-666-7926
FSC Code: 5331
MPN: 11957418810

5331-01-412-5436 (119-5749340)

NIIN: 01-412-5436
In stock
NSN: 5331-01-412-5436
FSC Code: 5331
MPN: 1195749340

5331-01-510-8525 (119-547)

NIIN: 01-510-8525
In stock
NSN: 5331-01-510-8525
FSC Code: 5331
MPN: 119547

5331-01-321-2360 (361-0906E031A11)

NIIN: 01-321-2360
In stock
NSN: 5331-01-321-2360
FSC Code: 5331
MPN: 3610906E031A11

5331-01-440-8663 (119392A1)

NIIN: 01-440-8663
In stock
NSN: 5331-01-440-8663
FSC Code: 5331
MPN: 119392A1

5331-01-440-8657 (119393A1)

NIIN: 01-440-8657
In stock
NSN: 5331-01-440-8657
FSC Code: 5331
MPN: 119393A1

5331-01-234-2492 (3609119-21)

NIIN: 01-234-2492
In stock
NSN: 5331-01-234-2492
FSC Code: 5331
MPN: 360911921

5331-01-509-1996 (119-2189)

NIIN: 01-509-1996
In stock
NSN: 5331-01-509-1996
FSC Code: 5331
MPN: 1192189

5331-01-148-4783 (3609119-9)

NIIN: 01-148-4783
In stock
NSN: 5331-01-148-4783
FSC Code: 5331
MPN: 36091199

5331-00-936-0430 (3609119-8)

NIIN: 00-936-0430
In stock
NSN: 5331-00-936-0430
FSC Code: 5331
MPN: 36091198

5331-01-318-6096 (3609119-1)

NIIN: 01-318-6096
In stock
NSN: 5331-01-318-6096
FSC Code: 5331
MPN: 36091191

5331-01-540-0566 (119174-18170)

NIIN: 01-540-0566
In stock
NSN: 5331-01-540-0566
FSC Code: 5331
MPN: 11917418170

5331-01-509-2008 (119-1549)

NIIN: 01-509-2008
In stock
NSN: 5331-01-509-2008
FSC Code: 5331
MPN: 1191549

5331-01-509-2003 (119-1590)

NIIN: 01-509-2003
In stock
NSN: 5331-01-509-2003
FSC Code: 5331
MPN: 1191590

5331-01-509-1975 (119-1586)

NIIN: 01-509-1975
In stock
NSN: 5331-01-509-1975
FSC Code: 5331
MPN: 1191586

5331-01-509-1970 (119-1577)

NIIN: 01-509-1970
In stock
NSN: 5331-01-509-1970
FSC Code: 5331
MPN: 1191577

5331-01-509-1980 (119-1547)

NIIN: 01-509-1980
In stock
NSN: 5331-01-509-1980
FSC Code: 5331
MPN: 1191547

5331-00-718-5523 (360599R1)

NIIN: 00-718-5523
In stock
NSN: 5331-00-718-5523
FSC Code: 5331
MPN: 360599R1