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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.

5331-14-302-4962 (02499D5300A50D7)

NIIN: 14-302-4962
In stock
NSN: 5331-14-302-4962
FSC Code: 5331
MPN: 02499D5300A50D7

5331-01-450-0911 (025-00316-814)

NIIN: 01-450-0911
In stock
NSN: 5331-01-450-0911
FSC Code: 5331
MPN: 02500316814

5331-01-417-7801 (025-00605-871)

NIIN: 01-417-7801
In stock
NSN: 5331-01-417-7801
FSC Code: 5331
MPN: 02500605871

5331-14-302-3958 (02500C0000A23B7)

NIIN: 14-302-3958
In stock
NSN: 5331-14-302-3958
FSC Code: 5331
MPN: 02500C0000A23B7

5331-01-407-0209 (025-00506MIL-R83248)

NIIN: 01-407-0209
In stock
NSN: 5331-01-407-0209
FSC Code: 5331
MPN: 02500506MILR83248

5331-01-447-2261 (025-00506-871)

NIIN: 01-447-2261
In stock
NSN: 5331-01-447-2261
FSC Code: 5331
MPN: 02500506871

5331-99-539-7140 (1R01791141TEM63)

NIIN: 99-539-7140
In stock
NSN: 5331-99-539-7140
FSC Code: 5331
MPN: 1R01791141TEM63

5331-01-226-9083 (24NES104)

NIIN: 01-226-9083
In stock
NSN: 5331-01-226-9083
FSC Code: 5331
MPN: 24NES104

5331-00-425-0881 (24-NES-1-10TEFL0N)

NIIN: 00-425-0881
In stock
NSN: 5331-00-425-0881
FSC Code: 5331
MPN: 24NES110TEFL0N

5331-00-414-0908 (24NES107TEF)

NIIN: 00-414-0908
In stock
NSN: 5331-00-414-0908
FSC Code: 5331
MPN: 24NES107TEF

5331-14-425-1995 (02512B7800A31B6)

NIIN: 14-425-1995
In stock
NSN: 5331-14-425-1995
FSC Code: 5331
MPN: 02512B7800A31B6

5331-01-227-7719 (24NES-126)

NIIN: 01-227-7719
In stock
NSN: 5331-01-227-7719
FSC Code: 5331
MPN: 24NES126

5331-00-414-1286 (24NES111B)

NIIN: 00-414-1286
In stock
NSN: 5331-00-414-1286
FSC Code: 5331
MPN: 24NES111B

5331-00-975-1800 (24NES1ITEM22)

NIIN: 00-975-1800
In stock
NSN: 5331-00-975-1800
FSC Code: 5331
MPN: 24NES1ITEM22

5331-01-125-1098 (24NES-27)

NIIN: 01-125-1098
In stock
NSN: 5331-01-125-1098
FSC Code: 5331
MPN: 24NES27

5331-00-917-7782 (24NES1ITEM31)

NIIN: 00-917-7782
In stock
NSN: 5331-00-917-7782
FSC Code: 5331
MPN: 24NES1ITEM31

5331-14-415-5999 (25-12X1-78-80V013A)

NIIN: 14-415-5999
In stock
NSN: 5331-14-415-5999
FSC Code: 5331
MPN: 2512X17880V013A

5331-14-389-1155 (02512B7800A20B9)

NIIN: 14-389-1155
In stock
NSN: 5331-14-389-1155
FSC Code: 5331
MPN: 02512B7800A20B9

5331-14-402-3770 (02512B7800A20B7)

NIIN: 14-402-3770
In stock
NSN: 5331-14-402-3770
FSC Code: 5331
MPN: 02512B7800A20B7

5331-01-219-5988 (24NES65)

NIIN: 01-219-5988
In stock
NSN: 5331-01-219-5988
FSC Code: 5331
MPN: 24NES65

5331-01-226-9504 (24NES-70)

NIIN: 01-226-9504
In stock
NSN: 5331-01-226-9504
FSC Code: 5331
MPN: 24NES70

5331-20-001-0491 (0252663-33)

NIIN: 20-001-0491
In stock
NSN: 5331-20-001-0491
FSC Code: 5331
MPN: 025266333

5331-20-001-0492 (02-52663-34)

NIIN: 20-001-0492
In stock
NSN: 5331-20-001-0492
FSC Code: 5331
MPN: 025266334

5331-20-001-0490 (02-52663-32)

NIIN: 20-001-0490
In stock
NSN: 5331-20-001-0490
FSC Code: 5331
MPN: 025266332

5331-01-542-5553 (025-3111-011)

NIIN: 01-542-5553
In stock
NSN: 5331-01-542-5553
FSC Code: 5331
MPN: 0253111011

5331-01-542-5555 (025-3113-204)

NIIN: 01-542-5555
In stock
NSN: 5331-01-542-5555
FSC Code: 5331
MPN: 0253113204

5331-01-467-7370 (025-3116-002)

NIIN: 01-467-7370
In stock
NSN: 5331-01-467-7370
FSC Code: 5331
MPN: 0253116002

5331-01-542-5556 (025-3116-008)

NIIN: 01-542-5556
In stock
NSN: 5331-01-542-5556
FSC Code: 5331
MPN: 0253116008

5331-01-542-5554 (025-3111-023)

NIIN: 01-542-5554
In stock
NSN: 5331-01-542-5554
FSC Code: 5331
MPN: 0253111023

5331-01-471-3756 (025-3133-210)

NIIN: 01-471-3756
In stock
NSN: 5331-01-471-3756
FSC Code: 5331
MPN: 0253133210

5331-01-471-3754 (025-3111-013)

NIIN: 01-471-3754
In stock
NSN: 5331-01-471-3754
FSC Code: 5331
MPN: 0253111013

5331-01-542-5557 (025-3131-014)

NIIN: 01-542-5557
In stock
NSN: 5331-01-542-5557
FSC Code: 5331
MPN: 0253131014

5331-01-471-3755 (025-3113-204)

NIIN: 01-471-3755
In stock
NSN: 5331-01-471-3755
FSC Code: 5331
MPN: 0253113204

5331-01-467-7427 (025-3131-008)

NIIN: 01-467-7427
In stock
NSN: 5331-01-467-7427
FSC Code: 5331
MPN: 0253131008

5331-01-471-3757 (025-3133-212)

NIIN: 01-471-3757
In stock
NSN: 5331-01-471-3757
FSC Code: 5331
MPN: 0253133212

5331-00-710-4369 (25.12X1.78)

NIIN: 00-710-4369
In stock
NSN: 5331-00-710-4369
FSC Code: 5331
MPN: 2512X178

5331-01-181-0585 (24T4770)

NIIN: 01-181-0585
In stock
NSN: 5331-01-181-0585
FSC Code: 5331
MPN: 24T4770

5331-01-467-9055 (025-3131-011)

NIIN: 01-467-9055
In stock
NSN: 5331-01-467-9055
FSC Code: 5331
MPN: 0253131011

5331-00-869-1212 (250-001-123)

NIIN: 00-869-1212
In stock
NSN: 5331-00-869-1212
FSC Code: 5331
MPN: 250001123

5331-01-327-9718 (250001-136)

NIIN: 01-327-9718
In stock
NSN: 5331-01-327-9718
FSC Code: 5331
MPN: 250001136

5331-01-268-9108 (25-00030-006)

NIIN: 01-268-9108
In stock
NSN: 5331-01-268-9108
FSC Code: 5331
MPN: 2500030006

5331-00-869-1220 (250-001-130)

NIIN: 00-869-1220
In stock
NSN: 5331-00-869-1220
FSC Code: 5331
MPN: 250001130

5331-01-154-4343 (25000-38)

NIIN: 01-154-4343
In stock
NSN: 5331-01-154-4343
FSC Code: 5331
MPN: 2500038

5331-01-511-1203 (025-517)

NIIN: 01-511-1203
In stock
NSN: 5331-01-511-1203
FSC Code: 5331
MPN: 025517

5331-01-296-1927 (250003-910)

NIIN: 01-296-1927
In stock
NSN: 5331-01-296-1927
FSC Code: 5331
MPN: 250003910

5331-01-110-8602 (25000-43)

NIIN: 01-110-8602
In stock
NSN: 5331-01-110-8602
FSC Code: 5331
MPN: 2500043

5331-01-307-8583 (250003-903)

NIIN: 01-307-8583
In stock
NSN: 5331-01-307-8583
FSC Code: 5331
MPN: 250003903

5331-01-296-2656 (250003-908)

NIIN: 01-296-2656
In stock
NSN: 5331-01-296-2656
FSC Code: 5331
MPN: 250003908