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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.

5331-01-201-3615 (10345110)

NIIN: 01-201-3615
In stock
NSN: 5331-01-201-3615
FSC Code: 5331
MPN: 10345110

5331-00-759-1689 (10344018)

NIIN: 00-759-1689
In stock
NSN: 5331-00-759-1689
FSC Code: 5331
MPN: 10344018

5331-01-187-7978 (10345269)

NIIN: 01-187-7978
In stock
NSN: 5331-01-187-7978
FSC Code: 5331
MPN: 10345269

5331-01-202-2542 (10345141)

NIIN: 01-202-2542
In stock
NSN: 5331-01-202-2542
FSC Code: 5331
MPN: 10345141

5331-00-051-7160 (10343131)

NIIN: 00-051-7160
In stock
NSN: 5331-00-051-7160
FSC Code: 5331
MPN: 10343131

5331-01-202-2544 (10345138)

NIIN: 01-202-2544
In stock
NSN: 5331-01-202-2544
FSC Code: 5331
MPN: 10345138

5331-01-202-2543 (10345137)

NIIN: 01-202-2543
In stock
NSN: 5331-01-202-2543
FSC Code: 5331
MPN: 10345137

5331-01-202-2545 (10345139)

NIIN: 01-202-2545
In stock
NSN: 5331-01-202-2545
FSC Code: 5331
MPN: 10345139

5331-00-253-4969 (10349759)

NIIN: 00-253-4969
In stock
NSN: 5331-00-253-4969
FSC Code: 5331
MPN: 10349759

5331-00-280-3397 (10352012)

NIIN: 00-280-3397
In stock
NSN: 5331-00-280-3397
FSC Code: 5331
MPN: 10352012

5331-00-933-7073 (10352013)

NIIN: 00-933-7073
In stock
NSN: 5331-00-933-7073
FSC Code: 5331
MPN: 10352013

5331-01-103-5435 (10352015)

NIIN: 01-103-5435
In stock
NSN: 5331-01-103-5435
FSC Code: 5331
MPN: 10352015

5331-00-933-7072 (10352014)

NIIN: 00-933-7072
In stock
NSN: 5331-00-933-7072
FSC Code: 5331
MPN: 10352014

5331-01-185-2587 (10353273)

NIIN: 01-185-2587
In stock
NSN: 5331-01-185-2587
FSC Code: 5331
MPN: 10353273

5331-00-103-1750 (10361280)

NIIN: 00-103-1750
In stock
NSN: 5331-00-103-1750
FSC Code: 5331
MPN: 10361280

5331-01-116-8114 (10365921)

NIIN: 01-116-8114
In stock
NSN: 5331-01-116-8114
FSC Code: 5331
MPN: 10365921

5331-01-146-4563 (10364997)

NIIN: 01-146-4563
In stock
NSN: 5331-01-146-4563
FSC Code: 5331
MPN: 10364997

5331-00-166-8403 (10370047)

NIIN: 00-166-8403
In stock
NSN: 5331-00-166-8403
FSC Code: 5331
MPN: 10370047

5331-01-048-4997 (10370040)

NIIN: 01-048-4997
In stock
NSN: 5331-01-048-4997
FSC Code: 5331
MPN: 10370040

5331-00-828-0437 (10368961)

NIIN: 00-828-0437
In stock
NSN: 5331-00-828-0437
FSC Code: 5331
MPN: 10368961

5331-01-299-7636 (10370655)

NIIN: 01-299-7636
In stock
NSN: 5331-01-299-7636
FSC Code: 5331
MPN: 10370655

5331-00-103-1986 (10369163)

NIIN: 00-103-1986
In stock
NSN: 5331-00-103-1986
FSC Code: 5331
MPN: 10369163

5331-00-165-1949 (10370042)

NIIN: 00-165-1949
In stock
NSN: 5331-00-165-1949
FSC Code: 5331
MPN: 10370042

5331-00-364-9922 (10374924)

NIIN: 00-364-9922
In stock
NSN: 5331-00-364-9922
FSC Code: 5331
MPN: 10374924

5331-00-173-3025 (10374799)

NIIN: 00-173-3025
In stock
NSN: 5331-00-173-3025
FSC Code: 5331
MPN: 10374799

5331-00-341-7474 (10374811)

NIIN: 00-341-7474
In stock
NSN: 5331-00-341-7474
FSC Code: 5331
MPN: 10374811

5331-00-684-5098 (10375808)

NIIN: 00-684-5098
In stock
NSN: 5331-00-684-5098
FSC Code: 5331
MPN: 10375808

5331-00-179-9376 (10376151)

NIIN: 00-179-9376
In stock
NSN: 5331-00-179-9376
FSC Code: 5331
MPN: 10376151

5331-01-147-1265 (10374788)

NIIN: 01-147-1265
In stock
NSN: 5331-01-147-1265
FSC Code: 5331
MPN: 10374788

5331-01-230-1767 (10378367)

NIIN: 01-230-1767
In stock
NSN: 5331-01-230-1767
FSC Code: 5331
MPN: 10378367

5331-00-274-7837 (10379462)

NIIN: 00-274-7837
In stock
NSN: 5331-00-274-7837
FSC Code: 5331
MPN: 10379462

5331-00-939-9095 (10382204)

NIIN: 00-939-9095
In stock
NSN: 5331-00-939-9095
FSC Code: 5331
MPN: 10382204

5331-01-043-5822 (10382234)

NIIN: 01-043-5822
In stock
NSN: 5331-01-043-5822
FSC Code: 5331
MPN: 10382234

5331-00-429-3525 (10382205)

NIIN: 00-429-3525
In stock
NSN: 5331-00-429-3525
FSC Code: 5331
MPN: 10382205

5331-00-986-4958 (10382206)

NIIN: 00-986-4958
In stock
NSN: 5331-00-986-4958
FSC Code: 5331
MPN: 10382206

5331-01-085-1676 (10380403)

NIIN: 01-085-1676
In stock
NSN: 5331-01-085-1676
FSC Code: 5331
MPN: 10380403

5331-00-103-1557 (10383432)

NIIN: 00-103-1557
In stock
NSN: 5331-00-103-1557
FSC Code: 5331
MPN: 10383432

5331-01-201-3629 (10383974)

NIIN: 01-201-3629
In stock
NSN: 5331-01-201-3629
FSC Code: 5331
MPN: 10383974

5331-01-201-3630 (10383976)

NIIN: 01-201-3630
In stock
NSN: 5331-01-201-3630
FSC Code: 5331
MPN: 10383976

5331-01-267-0109 (10383979)

NIIN: 01-267-0109
In stock
NSN: 5331-01-267-0109
FSC Code: 5331
MPN: 10383979

5331-00-250-0223 (10384022)

NIIN: 00-250-0223
In stock
NSN: 5331-00-250-0223
FSC Code: 5331
MPN: 10384022

5331-01-178-1761 (10383978)

NIIN: 01-178-1761
In stock
NSN: 5331-01-178-1761
FSC Code: 5331
MPN: 10383978

5331-00-633-6818 (10386332)

NIIN: 00-633-6818
In stock
NSN: 5331-00-633-6818
FSC Code: 5331
MPN: 10386332

5331-00-590-8872 (10388621)

NIIN: 00-590-8872
In stock
NSN: 5331-00-590-8872
FSC Code: 5331
MPN: 10388621

5331-01-112-1765 (10389776)

NIIN: 01-112-1765
In stock
NSN: 5331-01-112-1765
FSC Code: 5331
MPN: 10389776

5331-00-822-0082 (10390284)

NIIN: 00-822-0082
In stock
NSN: 5331-00-822-0082
FSC Code: 5331
MPN: 10390284

5331-01-112-6127 (10389777)

NIIN: 01-112-6127
In stock
NSN: 5331-01-112-6127
FSC Code: 5331
MPN: 10389777

5331-00-166-1089 (10391564)

NIIN: 00-166-1089
In stock
NSN: 5331-00-166-1089
FSC Code: 5331
MPN: 10391564