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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.

5331-01-600-1886 (41726)

NIIN: 01-600-1886
In stock
NSN: 5331-01-600-1886
FSC Code: 5331
MPN: 41726

5331-01-600-1000 (S9413-029)

NIIN: 01-600-1000
In stock
NSN: 5331-01-600-1000
FSC Code: 5331
MPN: S9413029

5331-01-599-6852 (568-267)

NIIN: 01-599-6852
In stock
NSN: 5331-01-599-6852
FSC Code: 5331
MPN: 568267

5331-01-599-6814 (560R095H03)

NIIN: 01-599-6814
In stock
NSN: 5331-01-599-6814
FSC Code: 5331
MPN: 560R095H03

5331-01-599-5788 (826502-231)

NIIN: 01-599-5788
In stock
NSN: 5331-01-599-5788
FSC Code: 5331
MPN: 826502231

5331-01-600-6261 (R0126343)

NIIN: 01-600-6261
In stock
NSN: 5331-01-600-6261
FSC Code: 5331
MPN: R0126343

5331-01-600-6241 (D1418-140-FKM)

NIIN: 01-600-6241
In stock
NSN: 5331-01-600-6241
FSC Code: 5331
MPN: D1418140FKM

5331-01-600-5985 (19-04-G8100-1285)

NIIN: 01-600-5985
In stock
NSN: 5331-01-600-5985
FSC Code: 5331
MPN: 1904G81001285

5331-01-600-5110 (70071597)

NIIN: 01-600-5110
In stock
NSN: 5331-01-600-5110
FSC Code: 5331
MPN: 70071597

5331-01-600-2731 (28750)

NIIN: 01-600-2731
In stock
NSN: 5331-01-600-2731
FSC Code: 5331
MPN: 28750

5331-01-600-1610 (119770-01180)

NIIN: 01-600-1610
In stock
NSN: 5331-01-600-1610
FSC Code: 5331
MPN: 11977001180

5331-01-600-1226 (010B213-SP600)

NIIN: 01-600-1226
In stock
NSN: 5331-01-600-1226
FSC Code: 5331
MPN: 010B213SP600

5331-01-600-1167 (10052367)

NIIN: 01-600-1167
In stock
NSN: 5331-01-600-1167
FSC Code: 5331
MPN: 10052367

5331-01-600-0421 (DS5701-022)

NIIN: 01-600-0421
In stock
NSN: 5331-01-600-0421
FSC Code: 5331
MPN: DS5701022

5331-01-599-5846 (826502-141)

NIIN: 01-599-5846
In stock
NSN: 5331-01-599-5846
FSC Code: 5331
MPN: 826502141

5331-01-599-5243 (251-10016-00)

NIIN: 01-599-5243
In stock
NSN: 5331-01-599-5243
FSC Code: 5331
MPN: 2511001600

5331-01-600-1278 (2-021 S3018-70B)

NIIN: 01-600-1278
In stock
NSN: 5331-01-600-1278
FSC Code: 5331
MPN: 2021S301870B

5331-01-600-1172 (300974)

NIIN: 01-600-1172
In stock
NSN: 5331-01-600-1172
FSC Code: 5331
MPN: 300974

5331-01-600-4499 (90301-81950-71)

NIIN: 01-600-4499
In stock
NSN: 5331-01-600-4499
FSC Code: 5331
MPN: 903018195071

5331-01-600-4436 (2-157NM071-70)

NIIN: 01-600-4436
In stock
NSN: 5331-01-600-4436
FSC Code: 5331
MPN: 2157NM07170

5331-01-600-1433 (10023509)

NIIN: 01-600-1433
In stock
NSN: 5331-01-600-1433
FSC Code: 5331
MPN: 10023509

5331-01-600-1389 (M22050-3-437)

NIIN: 01-600-1389
In stock
NSN: 5331-01-600-1389
FSC Code: 5331
MPN: M220503437

5331-01-600-1288 (2-034 S3018-70B)

NIIN: 01-600-1288
In stock
NSN: 5331-01-600-1288
FSC Code: 5331
MPN: 2034S301870B

5331-01-600-0775 (560R095H12)

NIIN: 01-600-0775
In stock
NSN: 5331-01-600-0775
FSC Code: 5331
MPN: 560R095H12

5331-01-600-0578 (119771-90260)

NIIN: 01-600-0578
In stock
NSN: 5331-01-600-0578
FSC Code: 5331
MPN: 11977190260

5331-01-599-8564 (601-15-004001-00-01 A)

NIIN: 01-599-8564
In stock
NSN: 5331-01-599-8564
FSC Code: 5331
MPN: 601150040010001A

5331-01-599-5656 (R0119553)

NIIN: 01-599-5656
In stock
NSN: 5331-01-599-5656
FSC Code: 5331
MPN: R0119553

5331-01-599-4900 (251-20020-03)

NIIN: 01-599-4900
In stock
NSN: 5331-01-599-4900
FSC Code: 5331
MPN: 2512002003

5331-01-599-4750 (00617611)

NIIN: 01-599-4750
In stock
NSN: 5331-01-599-4750
FSC Code: 5331
MPN: 00617611

5331-01-600-2732 (49612)

NIIN: 01-600-2732
In stock
NSN: 5331-01-600-2732
FSC Code: 5331
MPN: 49612

5331-01-600-2007 (M83248/1-554)

NIIN: 01-600-2007
In stock
NSN: 5331-01-600-2007
FSC Code: 5331
MPN: M832481554

5331-01-600-0976 (1560 REV K ITEM 5)

NIIN: 01-600-0976
In stock
NSN: 5331-01-600-0976
FSC Code: 5331
MPN: 1560REVKITEM5

5331-01-599-6580 (560R095H07)

NIIN: 01-599-6580
In stock
NSN: 5331-01-599-6580
FSC Code: 5331
MPN: 560R095H07

5331-01-599-5653 (R0119554)

NIIN: 01-599-5653
In stock
NSN: 5331-01-599-5653
FSC Code: 5331
MPN: R0119554

5331-01-599-5629 (R0119556)

NIIN: 01-599-5629
In stock
NSN: 5331-01-599-5629
FSC Code: 5331
MPN: R0119556

5331-01-599-5100 (DS5701-006)

NIIN: 01-599-5100
In stock
NSN: 5331-01-599-5100
FSC Code: 5331
MPN: DS5701006

5331-01-600-2008 (AS3209-558)

NIIN: 01-600-2008
In stock
NSN: 5331-01-600-2008
FSC Code: 5331
MPN: AS3209558

5331-01-600-0982 (DS5701-014)

NIIN: 01-600-0982
In stock
NSN: 5331-01-600-0982
FSC Code: 5331
MPN: DS5701014

5331-01-600-1066 (70071602)

NIIN: 01-600-1066
In stock
NSN: 5331-01-600-1066
FSC Code: 5331
MPN: 70071602

5331-01-599-9428 (MOR 15950X0300)

NIIN: 01-599-9428
In stock
NSN: 5331-01-599-9428
FSC Code: 5331
MPN: MOR15950X0300

5331-01-599-7723 (4D0083-20)

NIIN: 01-599-7723
In stock
NSN: 5331-01-599-7723
FSC Code: 5331
MPN: 4D008320

5331-01-599-7019 (F088229)

NIIN: 01-599-7019
In stock
NSN: 5331-01-599-7019
FSC Code: 5331
MPN: F088229

5331-01-599-5735 (517379)

NIIN: 01-599-5735
In stock
NSN: 5331-01-599-5735
FSC Code: 5331
MPN: 517379

5331-01-599-5460 (401-70-129057)

NIIN: 01-599-5460
In stock
NSN: 5331-01-599-5460
FSC Code: 5331
MPN: 40170129057

5331-01-599-3139 (DS5701-020)

NIIN: 01-599-3139
In stock
NSN: 5331-01-599-3139
FSC Code: 5331
MPN: DS5701020

5331-01-599-2201 (R512-16)

NIIN: 01-599-2201
In stock
NSN: 5331-01-599-2201
FSC Code: 5331
MPN: R51216

5331-01-600-1285 (2-031 S3018-70B)

NIIN: 01-600-1285
In stock
NSN: 5331-01-600-1285
FSC Code: 5331
MPN: 2031S301870B

5331-01-600-0881 (68451-86)

NIIN: 01-600-0881
In stock
NSN: 5331-01-600-0881
FSC Code: 5331
MPN: 6845186