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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.

5331-00-115-1354 (ARP568-144IDSA6865)

NIIN: 00-115-1354
In stock
NSN: 5331-00-115-1354
FSC Code: 5331
MPN: ARP568144IDSA6865

5331-00-827-2761 (ARP568-140MILP5516CLASSA)

NIIN: 00-827-2761
In stock
NSN: 5331-00-827-2761
FSC Code: 5331
MPN: ARP568140MILP5516CLASSA

5331-00-065-4752 (ARP568-156MILP5516CLASSB)

NIIN: 00-065-4752
In stock
NSN: 5331-00-065-4752
FSC Code: 5331
MPN: ARP568156MILP5516CLASSB

5331-00-221-9778 (ARP568-146MILP5)

NIIN: 00-221-9778
In stock
NSN: 5331-00-221-9778
FSC Code: 5331
MPN: ARP568146MILP5

5331-00-488-3853 (ARP568-139MILG23652TY2)

NIIN: 00-488-3853
In stock
NSN: 5331-00-488-3853
FSC Code: 5331
MPN: ARP568139MILG23652TY2

5331-00-179-4535 (ARP568-128)

NIIN: 00-179-4535
In stock
NSN: 5331-00-179-4535
FSC Code: 5331
MPN: ARP568128

5331-01-039-2522 (ARP568-141MILR25897TY1CL1)

NIIN: 01-039-2522
In stock
NSN: 5331-01-039-2522
FSC Code: 5331
MPN: ARP568141MILR25897TY1CL1

5331-00-180-9162 (ARP568-128ZZR765CL2BGR70)

NIIN: 00-180-9162
In stock
NSN: 5331-00-180-9162
FSC Code: 5331
MPN: ARP568128ZZR765CL2BGR70

5331-00-045-7296 (ARP568-138MILG1149)

NIIN: 00-045-7296
In stock
NSN: 5331-00-045-7296
FSC Code: 5331
MPN: ARP568138MILG1149

5331-00-180-9210 (ARP568-138ZZR765CL2BGR70)

NIIN: 00-180-9210
In stock
NSN: 5331-00-180-9210
FSC Code: 5331
MPN: ARP568138ZZR765CL2BGR70

5331-00-006-6648 (ARP568-130)

NIIN: 00-006-6648
In stock
NSN: 5331-00-006-6648
FSC Code: 5331
MPN: ARP568130

5331-00-115-1358 (ARP568-127)

NIIN: 00-115-1358
In stock
NSN: 5331-00-115-1358
FSC Code: 5331
MPN: ARP568127

5331-00-138-4449 (ARP568-138MILG23652TY2)

NIIN: 00-138-4449
In stock
NSN: 5331-00-138-4449
FSC Code: 5331
MPN: ARP568138MILG23652TY2

5331-01-029-9922 (ARP568-127MILR25897TY1CL1)

NIIN: 01-029-9922
In stock
NSN: 5331-01-029-9922
FSC Code: 5331
MPN: ARP568127MILR25897TY1CL1

5331-00-180-9163 (ARP568-134ZZR765CL2BGR70)

NIIN: 00-180-9163
In stock
NSN: 5331-00-180-9163
FSC Code: 5331
MPN: ARP568134ZZR765CL2BGR70

5331-00-180-9154 (ARP568-124ZZR765CL2BGR70)

NIIN: 00-180-9154
In stock
NSN: 5331-00-180-9154
FSC Code: 5331
MPN: ARP568124ZZR765CL2BGR70

5331-01-029-9915 (ARP568-124MILR25897TY1C1)

NIIN: 01-029-9915
In stock
NSN: 5331-01-029-9915
FSC Code: 5331
MPN: ARP568124MILR25897TY1C1

5331-00-180-9153 (ARP568-123ZZR765CL2BGR70)

NIIN: 00-180-9153
In stock
NSN: 5331-00-180-9153
FSC Code: 5331
MPN: ARP568123ZZR765CL2BGR70

5331-00-925-4372 (ARP568-120SAE120RCL1)

NIIN: 00-925-4372
In stock
NSN: 5331-00-925-4372
FSC Code: 5331
MPN: ARP568120SAE120RCL1

5331-00-708-7767 (ARP568-11MILG23652TY2)

NIIN: 00-708-7767
In stock
NSN: 5331-00-708-7767
FSC Code: 5331
MPN: ARP56811MILG23652TY2

5331-00-400-8481 (ARP568-122AMS3651)

NIIN: 00-400-8481
In stock
NSN: 5331-00-400-8481
FSC Code: 5331
MPN: ARP568122AMS3651

5331-00-101-8633 (ARP568-116MILG23652TY2)

NIIN: 00-101-8633
In stock
NSN: 5331-00-101-8633
FSC Code: 5331
MPN: ARP568116MILG23652TY2

5331-00-071-6622 (ARP568-1211DSA9250)

NIIN: 00-071-6622
In stock
NSN: 5331-00-071-6622
FSC Code: 5331
MPN: ARP5681211DSA9250

5331-01-029-9920 (ARP568-119MILR25897TY1CL1)

NIIN: 01-029-9920
In stock
NSN: 5331-01-029-9920
FSC Code: 5331
MPN: ARP568119MILR25897TY1CL1

5331-00-406-9301 (ARP568-115MILS6855CLASS2GRADE80)

NIIN: 00-406-9301
In stock
NSN: 5331-00-406-9301
FSC Code: 5331
MPN: ARP568115MILS6855CLASS2GRADE80

5331-00-071-6621 (ARP568-1191DSA6865)

NIIN: 00-071-6621
In stock
NSN: 5331-00-071-6621
FSC Code: 5331
MPN: ARP5681191DSA6865

5331-00-007-0195 (ARP568-119MILG23652TY2)

NIIN: 00-007-0195
In stock
NSN: 5331-00-007-0195
FSC Code: 5331
MPN: ARP568119MILG23652TY2

5331-00-495-2920 (ARP568-116MILG23652TY1)

NIIN: 00-495-2920
In stock
NSN: 5331-00-495-2920
FSC Code: 5331
MPN: ARP568116MILG23652TY1

5331-00-159-3171 (ARP568-115MILR2)

NIIN: 00-159-3171
In stock
NSN: 5331-00-159-3171
FSC Code: 5331
MPN: ARP568115MILR2

5331-00-159-3177 (ARP568-115MILP5)

NIIN: 00-159-3177
In stock
NSN: 5331-00-159-3177
FSC Code: 5331
MPN: ARP568115MILP5

5331-00-435-8500 (ARP568-115IDSA6865-70)

NIIN: 00-435-8500
In stock
NSN: 5331-00-435-8500
FSC Code: 5331
MPN: ARP568115IDSA686570

5331-00-003-4090 (ARP568-115-10V70)

NIIN: 00-003-4090
In stock
NSN: 5331-00-003-4090
FSC Code: 5331
MPN: ARP56811510V70

5331-00-911-3861 (ARP568-1141DSA6865-68)

NIIN: 00-911-3861
In stock
NSN: 5331-00-911-3861
FSC Code: 5331
MPN: ARP5681141DSA686568

5331-00-888-6310 (ARP568-114MILG1149TY2CL5)

NIIN: 00-888-6310
In stock
NSN: 5331-00-888-6310
FSC Code: 5331
MPN: ARP568114MILG1149TY2CL5

5331-00-900-9440 (ARP568-114MILG23652TYPE1)

NIIN: 00-900-9440
In stock
NSN: 5331-00-900-9440
FSC Code: 5331
MPN: ARP568114MILG23652TYPE1

5331-00-460-3004 (ARP568-114ZZR765CL2BGR70)

NIIN: 00-460-3004
In stock
NSN: 5331-00-460-3004
FSC Code: 5331
MPN: ARP568114ZZR765CL2BGR70

5331-01-039-2521 (ARP568-111MILR25897TY1C1CP)

NIIN: 01-039-2521
In stock
NSN: 5331-01-039-2521
FSC Code: 5331
MPN: ARP568111MILR25897TY1C1CP

5331-00-498-6850 (ARP568-113MILG23652TY1)

NIIN: 00-498-6850
In stock
NSN: 5331-00-498-6850
FSC Code: 5331
MPN: ARP568113MILG23652TY1

5331-01-029-9918 (ARP568-112MILR25897TY1CL1)

NIIN: 01-029-9918
In stock
NSN: 5331-01-029-9918
FSC Code: 5331
MPN: ARP568112MILR25897TY1CL1

5331-00-080-9639 (ARP568-112MILP5)

NIIN: 00-080-9639
In stock
NSN: 5331-00-080-9639
FSC Code: 5331
MPN: ARP568112MILP5

5331-00-003-5443 (ARP568-10V70)

NIIN: 00-003-5443
In stock
NSN: 5331-00-003-5443
FSC Code: 5331
MPN: ARP56810V70

5331-00-930-8303 (ARP568-113IDSA9250)

NIIN: 00-930-8303
In stock
NSN: 5331-00-930-8303
FSC Code: 5331
MPN: ARP568113IDSA9250

5331-00-406-7811 (ARP568-030MILS6855CLASS2GRADE80)

NIIN: 00-406-7811
In stock
NSN: 5331-00-406-7811
FSC Code: 5331
MPN: ARP568030MILS6855CLASS2GRADE80

5331-00-067-9996 (ARP568-037)

NIIN: 00-067-9996
In stock
NSN: 5331-00-067-9996
FSC Code: 5331
MPN: ARP568037

5331-00-495-2892 (ARP568-034MILG23652TY1)

NIIN: 00-495-2892
In stock
NSN: 5331-00-495-2892
FSC Code: 5331
MPN: ARP568034MILG23652TY1

5331-01-024-4842 (ARP568-109)

NIIN: 01-024-4842
In stock
NSN: 5331-01-024-4842
FSC Code: 5331
MPN: ARP568109

5331-00-071-6618 (ARP568-0281DSA6865)

NIIN: 00-071-6618
In stock
NSN: 5331-00-071-6618
FSC Code: 5331
MPN: ARP5680281DSA6865

5331-00-412-9376 (ARP568-035)

NIIN: 00-412-9376
In stock
NSN: 5331-00-412-9376
FSC Code: 5331
MPN: ARP568035