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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.

5331-01-147-4847 (82-20220-21)

NIIN: 01-147-4847
In stock
NSN: 5331-01-147-4847
FSC Code: 5331
MPN: 822022021

5331-00-248-5847 (82-20218-07)

NIIN: 00-248-5847
In stock
NSN: 5331-00-248-5847
FSC Code: 5331
MPN: 822021807

5331-00-458-2087 (82-20210-01)

NIIN: 00-458-2087
In stock
NSN: 5331-00-458-2087
FSC Code: 5331
MPN: 822021001

5331-01-450-9288 (411161-141)

NIIN: 01-450-9288
In stock
NSN: 5331-01-450-9288
FSC Code: 5331
MPN: 411161141

5331-01-492-1459 (4111-77(91816CSC))

NIIN: 01-492-1459
In stock
NSN: 5331-01-492-1459
FSC Code: 5331
MPN: 41117791816CSC

5331-00-189-9651 (82-20111-07)

NIIN: 00-189-9651
In stock
NSN: 5331-00-189-9651
FSC Code: 5331
MPN: 822011107

5331-00-760-7284 (82-20132-07)

NIIN: 00-760-7284
In stock
NSN: 5331-00-760-7284
FSC Code: 5331
MPN: 822013207

5331-00-409-4052 (82-20111-01)

NIIN: 00-409-4052
In stock
NSN: 5331-00-409-4052
FSC Code: 5331
MPN: 822011101

5331-00-917-0872 (82-20020-01)

NIIN: 00-917-0872
In stock
NSN: 5331-00-917-0872
FSC Code: 5331
MPN: 822002001

5331-01-435-7111 (5100-10TJ)

NIIN: 01-435-7111
In stock
NSN: 5331-01-435-7111
FSC Code: 5331
MPN: 510010TJ

5331-01-145-6890 (82-20018-07)

NIIN: 01-145-6890
In stock
NSN: 5331-01-145-6890
FSC Code: 5331
MPN: 822001807

5331-01-145-6889 (82-20015-07)

NIIN: 01-145-6889
In stock
NSN: 5331-01-145-6889
FSC Code: 5331
MPN: 822001507

5331-01-030-9155 (8219-70116)

NIIN: 01-030-9155
In stock
NSN: 5331-01-030-9155
FSC Code: 5331
MPN: 821970116

5331-00-916-9429 (82-20010-01)

NIIN: 00-916-9429
In stock
NSN: 5331-00-916-9429
FSC Code: 5331
MPN: 822001001

5331-00-106-2987 (82-20012-01)

NIIN: 00-106-2987
In stock
NSN: 5331-00-106-2987
FSC Code: 5331
MPN: 822001201

5331-01-410-7879 (411-0816)

NIIN: 01-410-7879
In stock
NSN: 5331-01-410-7879
FSC Code: 5331
MPN: 4110816

5331-01-133-8942 (82-20007-07)

NIIN: 01-133-8942
In stock
NSN: 5331-01-133-8942
FSC Code: 5331
MPN: 822000707

5331-01-410-7875 (41108-0)

NIIN: 01-410-7875
In stock
NSN: 5331-01-410-7875
FSC Code: 5331
MPN: 411080

5331-01-086-2381 (8218B)

NIIN: 01-086-2381
In stock
NSN: 5331-01-086-2381
FSC Code: 5331
MPN: 8218B

5331-01-410-7877 (41107-0)

NIIN: 01-410-7877
In stock
NSN: 5331-01-410-7877
FSC Code: 5331
MPN: 411070

5331-01-410-7878 (41105-0)

NIIN: 01-410-7878
In stock
NSN: 5331-01-410-7878
FSC Code: 5331
MPN: 411050

5331-01-410-7871 (41104-1)

NIIN: 01-410-7871
In stock
NSN: 5331-01-410-7871
FSC Code: 5331
MPN: 411041

5331-01-094-5101 (8217B)

NIIN: 01-094-5101
In stock
NSN: 5331-01-094-5101
FSC Code: 5331
MPN: 8217B

5331-01-094-9914 (8216B)

NIIN: 01-094-9914
In stock
NSN: 5331-01-094-9914
FSC Code: 5331
MPN: 8216B

5331-15-179-6462 (4-110)

NIIN: 15-179-6462
In stock
NSN: 5331-15-179-6462
FSC Code: 5331
MPN: 4110

5331-00-185-0188 (8216-560CK)

NIIN: 00-185-0188
In stock
NSN: 5331-00-185-0188
FSC Code: 5331
MPN: 8216560CK

5331-00-443-6134 (8-214-N300-9)

NIIN: 00-443-6134
In stock
NSN: 5331-00-443-6134
FSC Code: 5331
MPN: 8214N3009

5331-00-211-9104 (8213787-1)

NIIN: 00-211-9104
In stock
NSN: 5331-00-211-9104
FSC Code: 5331
MPN: 82137871

5331-01-020-5573 (82-132B-2)

NIIN: 01-020-5573
In stock
NSN: 5331-01-020-5573
FSC Code: 5331
MPN: 82132B2

5331-00-871-7905 (8212-245)

NIIN: 00-871-7905
In stock
NSN: 5331-00-871-7905
FSC Code: 5331
MPN: 8212245

5331-01-088-2748 (821162-4)

NIIN: 01-088-2748
In stock
NSN: 5331-01-088-2748
FSC Code: 5331
MPN: 8211624

5331-01-088-3297 (821162-7)

NIIN: 01-088-3297
In stock
NSN: 5331-01-088-3297
FSC Code: 5331
MPN: 8211627

5331-00-163-9744 (821160-4)

NIIN: 00-163-9744
In stock
NSN: 5331-00-163-9744
FSC Code: 5331
MPN: 8211604

5331-00-618-9550 (8-21007)

NIIN: 00-618-9550
In stock
NSN: 5331-00-618-9550
FSC Code: 5331
MPN: 821007

5331-01-062-1000 (820A0031)

NIIN: 01-062-1000
In stock
NSN: 5331-01-062-1000
FSC Code: 5331
MPN: 820A0031

5331-00-892-2302 (820832PC4)

NIIN: 00-892-2302
In stock
NSN: 5331-00-892-2302
FSC Code: 5331
MPN: 820832PC4

5331-00-701-1881 (820708-1)

NIIN: 00-701-1881
In stock
NSN: 5331-00-701-1881
FSC Code: 5331
MPN: 8207081

5331-01-372-9307 (4102WSW-1.00IN)

NIIN: 01-372-9307
In stock
NSN: 5331-01-372-9307
FSC Code: 5331
MPN: 4102WSW100IN

5331-01-524-9736 (MIL-P-25732)

NIIN: 01-524-9736
In stock
NSN: 5331-01-524-9736
FSC Code: 5331
MPN: MILP25732

5331-01-542-0041 (410-13691(9452K123))

NIIN: 01-542-0041
In stock
NSN: 5331-01-542-0041
FSC Code: 5331
MPN: 410136919452K123

5331-01-498-7117 (4100-16)

NIIN: 01-498-7117
In stock
NSN: 5331-01-498-7117
FSC Code: 5331
MPN: 410016

5331-01-348-8330 (41)

NIIN: 01-348-8330
In stock
NSN: 5331-01-348-8330
FSC Code: 5331
MPN: 41

5331-12-304-3690 (700429040003)

NIIN: 12-304-3690
In stock
NSN: 5331-12-304-3690
FSC Code: 5331
MPN: 700429040003

5331-01-289-2640 (820-5787357-2)

NIIN: 01-289-2640
In stock
NSN: 5331-01-289-2640
FSC Code: 5331
MPN: 82057873572

5331-01-289-2639 (820-5787357-1)

NIIN: 01-289-2639
In stock
NSN: 5331-01-289-2639
FSC Code: 5331
MPN: 82057873571

5331-01-318-3297 (820-5786921-3)

NIIN: 01-318-3297
In stock
NSN: 5331-01-318-3297
FSC Code: 5331
MPN: 82057869213

5331-01-317-9969 (820-5786921-2)

NIIN: 01-317-9969
In stock
NSN: 5331-01-317-9969
FSC Code: 5331
MPN: 82057869212

5331-00-045-8483 (820-5348605-341)

NIIN: 00-045-8483
In stock
NSN: 5331-00-045-8483
FSC Code: 5331
MPN: 8205348605341