Skip to content

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.

5331-01-384-9911 (177717-032)

NIIN: 01-384-9911
In stock
NSN: 5331-01-384-9911
FSC Code: 5331
MPN: 177717032

5331-00-800-2466 (5-021)

NIIN: 00-800-2466
In stock
NSN: 5331-00-800-2466
FSC Code: 5331
MPN: 5021

5331-01-338-3873 (502-05-638)

NIIN: 01-338-3873
In stock
NSN: 5331-01-338-3873
FSC Code: 5331
MPN: 50205638

5331-01-380-0256 (177449-0001)

NIIN: 01-380-0256
In stock
NSN: 5331-01-380-0256
FSC Code: 5331
MPN: 1774490001

5331-01-514-9119 (LFE-SP3-033)

NIIN: 01-514-9119
In stock
NSN: 5331-01-514-9119
FSC Code: 5331
MPN: LFESP3033

5331-01-572-5369 (17723-000)

NIIN: 01-572-5369
In stock
NSN: 5331-01-572-5369
FSC Code: 5331
MPN: 17723000

5331-01-544-3629 (17722-000)

NIIN: 01-544-3629
In stock
NSN: 5331-01-544-3629
FSC Code: 5331
MPN: 17722000

5331-01-425-5432 (17720233A)

NIIN: 01-425-5432
In stock
NSN: 5331-01-425-5432
FSC Code: 5331
MPN: 17720233A

5331-00-067-9183 (5018-912)

NIIN: 00-067-9183
In stock
NSN: 5331-00-067-9183
FSC Code: 5331
MPN: 5018912

5331-01-144-6180 (50187-C)

NIIN: 01-144-6180
In stock
NSN: 5331-01-144-6180
FSC Code: 5331
MPN: 50187C

5331-01-138-2637 (50187-C)

NIIN: 01-138-2637
In stock
NSN: 5331-01-138-2637
FSC Code: 5331
MPN: 50187C

5331-01-144-6179 (50183-C)

NIIN: 01-144-6179
In stock
NSN: 5331-01-144-6179
FSC Code: 5331
MPN: 50183C

5331-01-214-7699 (5018029-01)

NIIN: 01-214-7699
In stock
NSN: 5331-01-214-7699
FSC Code: 5331
MPN: 501802901

5331-01-284-7643 (5017L009-111)

NIIN: 01-284-7643
In stock
NSN: 5331-01-284-7643
FSC Code: 5331
MPN: 5017L009111

5331-01-207-0272 (5-017-N507-90)

NIIN: 01-207-0272
In stock
NSN: 5331-01-207-0272
FSC Code: 5331
MPN: 5017N50790

5331-01-284-9393 (5017L009-105)

NIIN: 01-284-9393
In stock
NSN: 5331-01-284-9393
FSC Code: 5331
MPN: 5017L009105

5331-01-425-5441 (17700082A)

NIIN: 01-425-5441
In stock
NSN: 5331-01-425-5441
FSC Code: 5331
MPN: 17700082A

5331-01-425-5443 (17700082A)

NIIN: 01-425-5443
In stock
NSN: 5331-01-425-5443
FSC Code: 5331
MPN: 17700082A

5331-01-425-5442 (17700082A)

NIIN: 01-425-5442
In stock
NSN: 5331-01-425-5442
FSC Code: 5331
MPN: 17700082A

5331-00-903-7848 (501727-1)

NIIN: 00-903-7848
In stock
NSN: 5331-00-903-7848
FSC Code: 5331
MPN: 5017271

5331-00-903-7847 (501727-2)

NIIN: 00-903-7847
In stock
NSN: 5331-00-903-7847
FSC Code: 5331
MPN: 5017272

5331-01-126-0825 (50171-C)

NIIN: 01-126-0825
In stock
NSN: 5331-01-126-0825
FSC Code: 5331
MPN: 50171C

5331-01-323-1548 (5017-017)

NIIN: 01-323-1548
In stock
NSN: 5331-01-323-1548
FSC Code: 5331
MPN: 5017017

5331-00-007-9377 (5017-029)

NIIN: 00-007-9377
In stock
NSN: 5331-00-007-9377
FSC Code: 5331
MPN: 5017029

5331-01-540-6759 (1769-1264ITEM23)

NIIN: 01-540-6759
In stock
NSN: 5331-01-540-6759
FSC Code: 5331
MPN: 17691264ITEM23

5331-00-837-8971 (501-65-5PC11CP)

NIIN: 00-837-8971
In stock
NSN: 5331-00-837-8971
FSC Code: 5331
MPN: 501655PC11CP

5331-01-572-7795 (1766702-01)

NIIN: 01-572-7795
In stock
NSN: 5331-01-572-7795
FSC Code: 5331
MPN: 176670201

5331-01-548-6175 (17654-7862)

NIIN: 01-548-6175
In stock
NSN: 5331-01-548-6175
FSC Code: 5331
MPN: 176547862

5331-01-436-2439 (1764AS519-1)

NIIN: 01-436-2439
In stock
NSN: 5331-01-436-2439
FSC Code: 5331
MPN: 1764AS5191

5331-00-463-0325 (5-014N122-6)

NIIN: 00-463-0325
In stock
NSN: 5331-00-463-0325
FSC Code: 5331
MPN: 5014N1226

5331-01-058-7104 (501-4675791)

NIIN: 01-058-7104
In stock
NSN: 5331-01-058-7104
FSC Code: 5331
MPN: 5014675791

5331-01-068-1217 (501-4675681)

NIIN: 01-068-1217
In stock
NSN: 5331-01-068-1217
FSC Code: 5331
MPN: 5014675681

5331-01-103-1785 (501-4675681)

NIIN: 01-103-1785
In stock
NSN: 5331-01-103-1785
FSC Code: 5331
MPN: 5014675681

5331-01-434-3822 (1763455-88)

NIIN: 01-434-3822
In stock
NSN: 5331-01-434-3822
FSC Code: 5331
MPN: 176345588

5331-01-126-1236 (5014465-2)

NIIN: 01-126-1236
In stock
NSN: 5331-01-126-1236
FSC Code: 5331
MPN: 50144652

5331-01-126-1235 (5014465-1)

NIIN: 01-126-1235
In stock
NSN: 5331-01-126-1235
FSC Code: 5331
MPN: 50144651

5331-01-139-0884 (5-014)

NIIN: 01-139-0884
In stock
NSN: 5331-01-139-0884
FSC Code: 5331
MPN: 5014

5331-01-220-7566 (5013-77)

NIIN: 01-220-7566
In stock
NSN: 5331-01-220-7566
FSC Code: 5331
MPN: 501377

5331-00-173-8041 (5013-51)

NIIN: 00-173-8041
In stock
NSN: 5331-00-173-8041
FSC Code: 5331
MPN: 501351

5331-12-312-3066 (700429175000)

NIIN: 12-312-3066
In stock
NSN: 5331-12-312-3066
FSC Code: 5331
MPN: 700429175000

5331-01-487-4169 (176.07.015.01)

NIIN: 01-487-4169
In stock
NSN: 5331-01-487-4169
FSC Code: 5331
MPN: 1760701501

5331-01-487-4173 (176.07.029.01)

NIIN: 01-487-4173
In stock
NSN: 5331-01-487-4173
FSC Code: 5331
MPN: 1760702901

5331-12-345-4727 (175001 700429175001)

NIIN: 12-345-4727
In stock
NSN: 5331-12-345-4727
FSC Code: 5331
MPN: 175001700429175001

5331-01-508-9028 (175-7896)

NIIN: 01-508-9028
In stock
NSN: 5331-01-508-9028
FSC Code: 5331
MPN: 1757896

5331-01-507-1586 (175-7902)

NIIN: 01-507-1586
In stock
NSN: 5331-01-507-1586
FSC Code: 5331
MPN: 1757902

5331-01-507-1584 (175-7895)

NIIN: 01-507-1584
In stock
NSN: 5331-01-507-1584
FSC Code: 5331
MPN: 1757895

5331-01-503-4436 (175-7903)

NIIN: 01-503-4436
In stock
NSN: 5331-01-503-4436
FSC Code: 5331
MPN: 1757903

5331-01-508-9023 (175-7898)

NIIN: 01-508-9023
In stock
NSN: 5331-01-508-9023
FSC Code: 5331
MPN: 1757898