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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.

5331-01-390-7286 (JL-77-172-2-2)

NIIN: 01-390-7286
In stock
NSN: 5331-01-390-7286
FSC Code: 5331
MPN: JL7717222

5331-01-288-9403 (ZZ-R-765)

NIIN: 01-288-9403
In stock
NSN: 5331-01-288-9403
FSC Code: 5331
MPN: ZZR765

5331-01-283-2438 (ZZ-R-765)

NIIN: 01-283-2438
In stock
NSN: 5331-01-283-2438
FSC Code: 5331
MPN: ZZR765

5331-01-288-9404 (ZZ-R-765)

NIIN: 01-288-9404
In stock
NSN: 5331-01-288-9404
FSC Code: 5331
MPN: ZZR765

5331-01-280-9387 (ZZ-R-765)

NIIN: 01-280-9387
In stock
NSN: 5331-01-280-9387
FSC Code: 5331
MPN: ZZR765

5331-01-314-3086 (ZZ-R-765)

NIIN: 01-314-3086
In stock
NSN: 5331-01-314-3086
FSC Code: 5331
MPN: ZZR765

5331-01-050-9037 (ZZL-6512-12D)

NIIN: 01-050-9037
In stock
NSN: 5331-01-050-9037
FSC Code: 5331
MPN: ZZL651212D

5331-01-050-9038 (ZZL-6522-12)

NIIN: 01-050-9038
In stock
NSN: 5331-01-050-9038
FSC Code: 5331
MPN: ZZL652212

5331-01-378-7167 (G-41020)

NIIN: 01-378-7167
In stock
NSN: 5331-01-378-7167
FSC Code: 5331
MPN: G41020

5331-01-464-1077 (G-4.0-155M-B1-0)

NIIN: 01-464-1077
In stock
NSN: 5331-01-464-1077
FSC Code: 5331
MPN: G40155MB10

5331-01-340-8199 (G-4.0-692FDB-B1-0)

NIIN: 01-340-8199
In stock
NSN: 5331-01-340-8199
FSC Code: 5331
MPN: G40692FDBB10

5331-01-294-1524 (ZD12G15000)

NIIN: 01-294-1524
In stock
NSN: 5331-01-294-1524
FSC Code: 5331
MPN: ZD12G15000

5331-01-294-1526 (ZD12G05500)

NIIN: 01-294-1526
In stock
NSN: 5331-01-294-1526
FSC Code: 5331
MPN: ZD12G05500

5331-01-294-1523 (ZD12G13500)

NIIN: 01-294-1523
In stock
NSN: 5331-01-294-1523
FSC Code: 5331
MPN: ZD12G13500

5331-01-294-1527 (ZD12G07500)

NIIN: 01-294-1527
In stock
NSN: 5331-01-294-1527
FSC Code: 5331
MPN: ZD12G07500

5331-01-355-9910 (G-375-B-120-AA-A)

NIIN: 01-355-9910
In stock
NSN: 5331-01-355-9910
FSC Code: 5331
MPN: G375B120AAA

5331-01-205-5637 (Z20096D052)

NIIN: 01-205-5637
In stock
NSN: 5331-01-205-5637
FSC Code: 5331
MPN: Z20096D052

5331-00-882-7952 (Z120A201)

NIIN: 00-882-7952
In stock
NSN: 5331-00-882-7952
FSC Code: 5331
MPN: Z120A201

5331-01-527-8043 (G2FIRC31213)

NIIN: 01-527-8043
In stock
NSN: 5331-01-527-8043
FSC Code: 5331
MPN: G2FIRC31213

5331-01-253-0069 (Z1057F-SER)

NIIN: 01-253-0069
In stock
NSN: 5331-01-253-0069
FSC Code: 5331
MPN: Z1057FSER

5331-01-289-4363 (Z-028)

NIIN: 01-289-4363
In stock
NSN: 5331-01-289-4363
FSC Code: 5331
MPN: Z028

5331-01-183-1284 (Z0R)

NIIN: 01-183-1284
In stock
NSN: 5331-01-183-1284
FSC Code: 5331
MPN: Z0R

5331-01-207-1480 (YY4014261)

NIIN: 01-207-1480
In stock
NSN: 5331-01-207-1480
FSC Code: 5331
MPN: YY4014261

5331-01-207-1481 (YY4014266)

NIIN: 01-207-1481
In stock
NSN: 5331-01-207-1481
FSC Code: 5331
MPN: YY4014266

5331-01-207-1482 (YY4014267)

NIIN: 01-207-1482
In stock
NSN: 5331-01-207-1482
FSC Code: 5331
MPN: YY4014267

5331-01-277-7219 (YX98500129)

NIIN: 01-277-7219
In stock
NSN: 5331-01-277-7219
FSC Code: 5331
MPN: YX98500129

5331-01-273-6805 (YRG1-5011)

NIIN: 01-273-6805
In stock
NSN: 5331-01-273-6805
FSC Code: 5331
MPN: YRG15011

5331-01-273-6806 (YRG1-5002)

NIIN: 01-273-6806
In stock
NSN: 5331-01-273-6806
FSC Code: 5331
MPN: YRG15002

5331-01-194-0470 (YRG1-5015)

NIIN: 01-194-0470
In stock
NSN: 5331-01-194-0470
FSC Code: 5331
MPN: YRG15015

5331-01-091-6080 (YRG0-5036)

NIIN: 01-091-6080
In stock
NSN: 5331-01-091-6080
FSC Code: 5331
MPN: YRG05036

5331-01-324-2539 (YRG0-0011)

NIIN: 01-324-2539
In stock
NSN: 5331-01-324-2539
FSC Code: 5331
MPN: YRG00011

5331-01-304-3462 (YMD-4580)

NIIN: 01-304-3462
In stock
NSN: 5331-01-304-3462
FSC Code: 5331
MPN: YMD4580

5331-01-278-9482 (YBA-635)

NIIN: 01-278-9482
In stock
NSN: 5331-01-278-9482
FSC Code: 5331
MPN: YBA635

5331-00-171-8100 (YA1592-1119-1)

NIIN: 00-171-8100
In stock
NSN: 5331-00-171-8100
FSC Code: 5331
MPN: YA159211191

5331-00-138-5823 (Y88161200)

NIIN: 00-138-5823
In stock
NSN: 5331-00-138-5823
FSC Code: 5331
MPN: Y88161200

5331-00-138-5816 (Y88161193)

NIIN: 00-138-5816
In stock
NSN: 5331-00-138-5816
FSC Code: 5331
MPN: Y88161193

5331-01-181-0596 (Y671014)

NIIN: 01-181-0596
In stock
NSN: 5331-01-181-0596
FSC Code: 5331
MPN: Y671014

5331-01-286-5455 (Y325-7)

NIIN: 01-286-5455
In stock
NSN: 5331-01-286-5455
FSC Code: 5331
MPN: Y3257

5331-01-171-6299 (Y330-16)

NIIN: 01-171-6299
In stock
NSN: 5331-01-171-6299
FSC Code: 5331
MPN: Y33016

5331-01-160-9862 (Y325-221)

NIIN: 01-160-9862
In stock
NSN: 5331-01-160-9862
FSC Code: 5331
MPN: Y325221

5331-01-290-6091 (Y325-25)

NIIN: 01-290-6091
In stock
NSN: 5331-01-290-6091
FSC Code: 5331
MPN: Y32525

5331-01-196-2462 (Y325-026)

NIIN: 01-196-2462
In stock
NSN: 5331-01-196-2462
FSC Code: 5331
MPN: Y325026

5331-01-161-6036 (Y325-115)

NIIN: 01-161-6036
In stock
NSN: 5331-01-161-6036
FSC Code: 5331
MPN: Y325115

5331-01-161-2408 (Y325-110)

NIIN: 01-161-2408
In stock
NSN: 5331-01-161-2408
FSC Code: 5331
MPN: Y325110

5331-01-154-0649 (Y325-014)

NIIN: 01-154-0649
In stock
NSN: 5331-01-154-0649
FSC Code: 5331
MPN: Y325014

5331-01-341-7482 (G-244)

NIIN: 01-341-7482
In stock
NSN: 5331-01-341-7482
FSC Code: 5331
MPN: G244

5331-01-196-6552 (Y151-20)

NIIN: 01-196-6552
In stock
NSN: 5331-01-196-6552
FSC Code: 5331
MPN: Y15120

5331-00-178-0744 (Y125-2)

NIIN: 00-178-0744
In stock
NSN: 5331-00-178-0744
FSC Code: 5331
MPN: Y1252