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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.

5331-01-606-7121 (845-7504734-01-X-93)

NIIN: 01-606-7121
In stock
NSN: 5331-01-606-7121
FSC Code: 5331
MPN: 845750473401X93

5331-01-606-4821 (F1DZ 7Z101 A)

NIIN: 01-606-4821
In stock
NSN: 5331-01-606-4821
FSC Code: 5331
MPN: F1DZ7Z101A

5331-01-607-1582 (AS-568A-013-70-FS)

NIIN: 01-607-1582
In stock
NSN: 5331-01-607-1582
FSC Code: 5331
MPN: AS568A01370FS

5331-01-606-9943 (000.000.306.602)

NIIN: 01-606-9943
In stock
NSN: 5331-01-606-9943
FSC Code: 5331
MPN: 000000306602

5331-01-606-8482 (609000005)

NIIN: 01-606-8482
In stock
NSN: 5331-01-606-8482
FSC Code: 5331
MPN: 609000005

5331-01-606-7323 (M83248/2-013)

NIIN: 01-606-7323
In stock
NSN: 5331-01-606-7323
FSC Code: 5331
MPN: M832482013

5331-01-606-7322 (M83248/2-015)

NIIN: 01-606-7322
In stock
NSN: 5331-01-606-7322
FSC Code: 5331
MPN: M832482015

5331-01-606-4894 (2586637C1)

NIIN: 01-606-4894
In stock
NSN: 5331-01-606-4894
FSC Code: 5331
MPN: 2586637C1

5331-01-607-1773 (27KP319)

NIIN: 01-607-1773
In stock
NSN: 5331-01-607-1773
FSC Code: 5331
MPN: 27KP319

5331-01-607-1829 (H125839)

NIIN: 01-607-1829
In stock
NSN: 5331-01-607-1829
FSC Code: 5331
MPN: H125839

5331-01-606-9588 (MHW-200-304)

NIIN: 01-606-9588
In stock
NSN: 5331-01-606-9588
FSC Code: 5331
MPN: MHW200304

5331-01-606-9413 (734911-12)

NIIN: 01-606-9413
In stock
NSN: 5331-01-606-9413
FSC Code: 5331
MPN: 73491112

5331-01-606-8224 (ST053K10VT)

NIIN: 01-606-8224
In stock
NSN: 5331-01-606-8224
FSC Code: 5331
MPN: ST053K10VT

5331-01-606-7565 (710-028-SIL)

NIIN: 01-606-7565
In stock
NSN: 5331-01-606-7565
FSC Code: 5331
MPN: 710028SIL

5331-01-606-5810 (230-910)

NIIN: 01-606-5810
In stock
NSN: 5331-01-606-5810
FSC Code: 5331
MPN: 230910

5331-01-606-5852 (0402.121)

NIIN: 01-606-5852
In stock
NSN: 5331-01-606-5852
FSC Code: 5331
MPN: 0402121

5331-01-606-4900 (710-016-SIL)

NIIN: 01-606-4900
In stock
NSN: 5331-01-606-4900
FSC Code: 5331
MPN: 710016SIL

5331-01-606-4188 (652637068)

NIIN: 01-606-4188
In stock
NSN: 5331-01-606-4188
FSC Code: 5331
MPN: 652637068

5331-01-606-4104 (460 0319)

NIIN: 01-606-4104
In stock
NSN: 5331-01-606-4104
FSC Code: 5331
MPN: 4600319

5331-01-606-4027 (205070)

NIIN: 01-606-4027
In stock
NSN: 5331-01-606-4027
FSC Code: 5331
MPN: 205070

5331-01-606-4033 (1218-126)

NIIN: 01-606-4033
In stock
NSN: 5331-01-606-4033
FSC Code: 5331
MPN: 1218126

5331-01-606-3902 (B8743 REV I ITEM 2CP)

NIIN: 01-606-3902
In stock
NSN: 5331-01-606-3902
FSC Code: 5331
MPN: B8743REVIITEM2CP

5331-01-606-2414 (331222)

NIIN: 01-606-2414
In stock
NSN: 5331-01-606-2414
FSC Code: 5331
MPN: 331222

5331-01-607-0756 (652213563)

NIIN: 01-607-0756
In stock
NSN: 5331-01-607-0756
FSC Code: 5331
MPN: 652213563

5331-01-606-8078 (U-10009-2)

NIIN: 01-606-8078
In stock
NSN: 5331-01-606-8078
FSC Code: 5331
MPN: U100092

5331-01-606-7311 (12510336-3)

NIIN: 01-606-7311
In stock
NSN: 5331-01-606-7311
FSC Code: 5331
MPN: 125103363

5331-01-606-2417 (332350)

NIIN: 01-606-2417
In stock
NSN: 5331-01-606-2417
FSC Code: 5331
MPN: 332350

5331-01-606-0801 (M83248/2-024)

NIIN: 01-606-0801
In stock
NSN: 5331-01-606-0801
FSC Code: 5331
MPN: M832482024

5331-01-606-9975 (220055)

NIIN: 01-606-9975
In stock
NSN: 5331-01-606-9975
FSC Code: 5331
MPN: 220055

5331-01-606-8485 (65214.26.63)

NIIN: 01-606-8485
In stock
NSN: 5331-01-606-8485
FSC Code: 5331
MPN: 652142663

5331-01-606-7325 (M83248/2-019)

NIIN: 01-606-7325
In stock
NSN: 5331-01-606-7325
FSC Code: 5331
MPN: M832482019

5331-01-606-6112 (F2VY 7Z276 A)

NIIN: 01-606-6112
In stock
NSN: 5331-01-606-6112
FSC Code: 5331
MPN: F2VY7Z276A

5331-01-606-5543 (123-149-5)

NIIN: 01-606-5543
In stock
NSN: 5331-01-606-5543
FSC Code: 5331
MPN: 1231495

5331-01-606-4034 (218429)

NIIN: 01-606-4034
In stock
NSN: 5331-01-606-4034
FSC Code: 5331
MPN: 218429

5331-01-606-3053 (652475368)

NIIN: 01-606-3053
In stock
NSN: 5331-01-606-3053
FSC Code: 5331
MPN: 652475368

5331-01-606-2431 (0041-1092BAC)

NIIN: 01-606-2431
In stock
NSN: 5331-01-606-2431
FSC Code: 5331
MPN: 00411092BAC

5331-01-606-0761 (1000-0010-015)

NIIN: 01-606-0761
In stock
NSN: 5331-01-606-0761
FSC Code: 5331
MPN: 10000010015

5331-01-606-8544 (J515CH220X0133H)

NIIN: 01-606-8544
In stock
NSN: 5331-01-606-8544
FSC Code: 5331
MPN: J515CH220X0133H

5331-01-606-8486 (65222.35.68)

NIIN: 01-606-8486
In stock
NSN: 5331-01-606-8486
FSC Code: 5331
MPN: 652223568

5331-01-606-8488 (14000157)

NIIN: 01-606-8488
In stock
NSN: 5331-01-606-8488
FSC Code: 5331
MPN: 14000157

5331-01-606-5887 (0010012255)

NIIN: 01-606-5887
In stock
NSN: 5331-01-606-5887
FSC Code: 5331
MPN: 0010012255

5331-01-606-3028 (B8744 REV G ITEM 1CP)

NIIN: 01-606-3028
In stock
NSN: 5331-01-606-3028
FSC Code: 5331
MPN: B8744REVGITEM1CP

5331-01-606-1404 (5256-135)

NIIN: 01-606-1404
In stock
NSN: 5331-01-606-1404
FSC Code: 5331
MPN: 5256135

5331-01-606-0804 (M83248/2-042)

NIIN: 01-606-0804
In stock
NSN: 5331-01-606-0804
FSC Code: 5331
MPN: M832482042

5331-01-605-9407 (696000009)

NIIN: 01-605-9407
In stock
NSN: 5331-01-605-9407
FSC Code: 5331
MPN: 696000009

5331-01-606-7567 (710-019-SIL)

NIIN: 01-606-7567
In stock
NSN: 5331-01-606-7567
FSC Code: 5331
MPN: 710019SIL

5331-01-606-7122 (845-7504734-01-X-89)

NIIN: 01-606-7122
In stock
NSN: 5331-01-606-7122
FSC Code: 5331
MPN: 845750473401X89

5331-01-606-5869 (19169305)

NIIN: 01-606-5869
In stock
NSN: 5331-01-606-5869
FSC Code: 5331
MPN: 19169305