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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.

5331-00-526-6922 (S70C)

NIIN: 00-526-6922
In stock
NSN: 5331-00-526-6922
FSC Code: 5331
MPN: S70C

5331-01-127-2876 (S6738-2)

NIIN: 01-127-2876
In stock
NSN: 5331-01-127-2876
FSC Code: 5331
MPN: S67382

5331-01-138-5275 (S6738-3)

NIIN: 01-138-5275
In stock
NSN: 5331-01-138-5275
FSC Code: 5331
MPN: S67383

5331-01-190-1880 (S6592)

NIIN: 01-190-1880
In stock
NSN: 5331-01-190-1880
FSC Code: 5331
MPN: S6592

5331-01-190-1881 (S62758)

NIIN: 01-190-1881
In stock
NSN: 5331-01-190-1881
FSC Code: 5331
MPN: S62758

5331-00-702-3571 (S6135-20059-3)

NIIN: 00-702-3571
In stock
NSN: 5331-00-702-3571
FSC Code: 5331
MPN: S6135200593

5331-01-270-1764 (S6135-20059-103)

NIIN: 01-270-1764
In stock
NSN: 5331-01-270-1764
FSC Code: 5331
MPN: S613520059103

5331-00-684-2574 (S6135-20059-7)

NIIN: 00-684-2574
In stock
NSN: 5331-00-684-2574
FSC Code: 5331
MPN: S6135200597

5331-01-276-1680 (S6135-20697-101)

NIIN: 01-276-1680
In stock
NSN: 5331-01-276-1680
FSC Code: 5331
MPN: S613520697101

5331-00-269-3199 (S6135-20697-1)

NIIN: 00-269-3199
In stock
NSN: 5331-00-269-3199
FSC Code: 5331
MPN: S6135206971

5331-00-702-3582 (S6135-20059-5)

NIIN: 00-702-3582
In stock
NSN: 5331-00-702-3582
FSC Code: 5331
MPN: S6135200595

5331-01-270-1761 (S6135-20059-107)

NIIN: 01-270-1761
In stock
NSN: 5331-01-270-1761
FSC Code: 5331
MPN: S613520059107

5331-01-270-1766 (S6135-20059-106)

NIIN: 01-270-1766
In stock
NSN: 5331-01-270-1766
FSC Code: 5331
MPN: S613520059106

5331-00-679-0212 (S6135-20059-2)

NIIN: 00-679-0212
In stock
NSN: 5331-00-679-0212
FSC Code: 5331
MPN: S6135200592

5331-00-731-8814 (S6135-20059-11)

NIIN: 00-731-8814
In stock
NSN: 5331-00-731-8814
FSC Code: 5331
MPN: S61352005911

5331-01-270-1763 (S6135-20059-101)

NIIN: 01-270-1763
In stock
NSN: 5331-01-270-1763
FSC Code: 5331
MPN: S613520059101

5331-01-270-1765 (S6135-20059-102)

NIIN: 01-270-1765
In stock
NSN: 5331-01-270-1765
FSC Code: 5331
MPN: S613520059102

5331-01-270-1762 (S6135-20059-105)

NIIN: 01-270-1762
In stock
NSN: 5331-01-270-1762
FSC Code: 5331
MPN: S613520059105

5331-00-702-9014 (S6135-20059-1)

NIIN: 00-702-9014
In stock
NSN: 5331-00-702-9014
FSC Code: 5331
MPN: S6135200591

5331-01-478-6786 (CC-6005-C)

NIIN: 01-478-6786
In stock
NSN: 5331-01-478-6786
FSC Code: 5331
MPN: CC6005C

5331-01-478-6782 (CC-6005-E)

NIIN: 01-478-6782
In stock
NSN: 5331-01-478-6782
FSC Code: 5331
MPN: CC6005E

5331-01-478-6795 (CC-6005-B)

NIIN: 01-478-6795
In stock
NSN: 5331-01-478-6795
FSC Code: 5331
MPN: CC6005B

5331-01-478-6789 (CC-6005-D)

NIIN: 01-478-6789
In stock
NSN: 5331-01-478-6789
FSC Code: 5331
MPN: CC6005D

5331-01-478-6802 (CC-6005-1)

NIIN: 01-478-6802
In stock
NSN: 5331-01-478-6802
FSC Code: 5331
MPN: CC60051

5331-00-462-5294 (S6112-23099-101)

NIIN: 00-462-5294
In stock
NSN: 5331-00-462-5294
FSC Code: 5331
MPN: S611223099101

5331-00-942-5220 (S6112-23038-001)

NIIN: 00-942-5220
In stock
NSN: 5331-00-942-5220
FSC Code: 5331
MPN: S611223038001

5331-00-477-3987 (S6035-63070-3)

NIIN: 00-477-3987
In stock
NSN: 5331-00-477-3987
FSC Code: 5331
MPN: S6035630703

5331-01-189-3632 (S6028)

NIIN: 01-189-3632
In stock
NSN: 5331-01-189-3632
FSC Code: 5331
MPN: S6028

5331-01-374-1046 (CC-10564)

NIIN: 01-374-1046
In stock
NSN: 5331-01-374-1046
FSC Code: 5331
MPN: CC10564

5331-00-922-3272 (S5990)

NIIN: 00-922-3272
In stock
NSN: 5331-00-922-3272
FSC Code: 5331
MPN: S5990

5331-01-374-1044 (CC-10215)

NIIN: 01-374-1044
In stock
NSN: 5331-01-374-1044
FSC Code: 5331
MPN: CC10215

5331-01-374-1043 (CC-10588)

NIIN: 01-374-1043
In stock
NSN: 5331-01-374-1043
FSC Code: 5331
MPN: CC10588

5331-01-374-1047 (CC-10577)

NIIN: 01-374-1047
In stock
NSN: 5331-01-374-1047
FSC Code: 5331
MPN: CC10577

5331-01-374-1048 (CC-10137)

NIIN: 01-374-1048
In stock
NSN: 5331-01-374-1048
FSC Code: 5331
MPN: CC10137

5331-01-374-1045 (CC-10539)

NIIN: 01-374-1045
In stock
NSN: 5331-01-374-1045
FSC Code: 5331
MPN: CC10539

5331-01-190-1884 (S5734)

NIIN: 01-190-1884
In stock
NSN: 5331-01-190-1884
FSC Code: 5331
MPN: S5734

5331-01-190-1888 (S5633)

NIIN: 01-190-1888
In stock
NSN: 5331-01-190-1888
FSC Code: 5331
MPN: S5633

5331-01-257-4789 (S555X67)

NIIN: 01-257-4789
In stock
NSN: 5331-01-257-4789
FSC Code: 5331
MPN: S555X67

5331-01-247-2766 (S555X104)

NIIN: 01-247-2766
In stock
NSN: 5331-01-247-2766
FSC Code: 5331
MPN: S555X104

5331-01-248-3253 (S555X109)

NIIN: 01-248-3253
In stock
NSN: 5331-01-248-3253
FSC Code: 5331
MPN: S555X109

5331-01-255-9278 (S555X103)

NIIN: 01-255-9278
In stock
NSN: 5331-01-255-9278
FSC Code: 5331
MPN: S555X103

5331-01-258-0090 (S555X25)

NIIN: 01-258-0090
In stock
NSN: 5331-01-258-0090
FSC Code: 5331
MPN: S555X25

5331-00-355-5637 (S546637)

NIIN: 00-355-5637
In stock
NSN: 5331-00-355-5637
FSC Code: 5331
MPN: S546637

5331-01-388-6237 (CB-87-23)

NIIN: 01-388-6237
In stock
NSN: 5331-01-388-6237
FSC Code: 5331
MPN: CB8723

5331-01-334-7195 (S-506)

NIIN: 01-334-7195
In stock
NSN: 5331-01-334-7195
FSC Code: 5331
MPN: S506

5331-01-532-6824 (CB/5855-30R)

NIIN: 01-532-6824
In stock
NSN: 5331-01-532-6824
FSC Code: 5331
MPN: CB585530R

5331-01-098-1395 (S49-113)

NIIN: 01-098-1395
In stock
NSN: 5331-01-098-1395
FSC Code: 5331
MPN: S49113

5331-01-424-9457 (PL19XL5353458CR)

NIIN: 01-424-9457
In stock
NSN: 5331-01-424-9457
FSC Code: 5331
MPN: PL19XL5353458CR