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Home/Military Standard parts/Seals & Fittings/FSC 5331
Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-01-237-4954 P/N 28904-7 · 28904-7 · 28904-7 · 28904-7 · +2 more
  2. O-RING NSN 5331-01-236-5110 P/N 912-2677 · GS570J3K12 · GS570J3K12 · 912-SR569-70 · +2 more
  3. O-RING NSN 5331-01-236-1540 P/N MS28775-365 · MIL-P-25732 · MS28775-365 · MS28775-365 · +2 more
  4. O-RING NSN 5331-01-236-0472 P/N P92284 · P-193243A · 27602 · P92284 · +2 more
  5. O-RING NSN 5331-01-219-9072 P/N 2670890-8 · 5331PL0848116 · 5331PL1739748 · 2670890-8 · +2 more
  6. O-RING NSN 5331-01-219-1275 P/N AS568-123 2AA815A13F17EA14 · A-123SR725-80 · 2-123 E540-80 · HJE03337 · +2 more
  7. O-RING NSN 5331-01-219-0475 P/N AS568 · MIL-G-21569 · 2-019N674-70 · AS568 · +2 more
  8. O-RING NSN 5331-01-217-4037 P/N 568-275-823-70 · AS568-275 · PA60194-275 · A-210-SR604-70 · +2 more
  9. O-RING NSN 5331-01-215-0122 P/N M25988-4-145 · RS26110-14536 · MIL-DTL-25988/4 · M25988/4-145 · +2 more
  10. O-RING NSN 5331-01-214-5090 P/N 11041 · 11340 · RK11341 · 11340 · +2 more
  11. O-RING NSN 5331-01-211-0713 P/N AS568B-902 · MIL-P-25732C · 20221 FIND 26 · A6689-902-303 · +2 more
  12. O-RING NSN 5331-01-210-8736 P/N C687-7318ITEM15 · C687-7306ITEM52 · C867-7318 ITEM 15 · C867-7306 ITEM 52 · +2 more
  13. O-RING NSN 5331-01-206-7329 P/N AS3581-388 · MIL-R-83248/2 · M83248/2-388 · 07402-20117 · +2 more
  14. O-RING NSN 5331-01-205-9774 P/N 949659 · 925065-5 · 5331PL0863401 · 10009210 · +2 more
  15. O-RING NSN 5331-01-204-2997 P/N ASTEM D2000/2AA815A13F17EA14 · AS568-225 2AA815A13F17EA14 · 2-225E540-80 · 2-225 E663-80 · +2 more
  16. O-RING NSN 5331-01-203-2571 P/N 5214-06 · U-10239 · 591406 · 5214-99 · +2 more
  17. O-RING NSN 5331-01-201-8609 P/N S9026J009 · S9026J009 · S9026 · S9026J009 · +2 more
  18. O-RING NSN 5331-01-201-6452 P/N S8990-043 · MS9386-043 · MS9386-043 · S8990-043 · +2 more
  19. O-RING NSN 5331-01-199-9950 P/N D7558 PIECE 32 · 008-RG006-38 · D-7490 PIECE 32 · PO0271NRP · +2 more
  20. O-RING NSN 5331-01-198-8101 P/N X1363T5 · H-20481 PIECE 31 · H-20481 PIECE 31 · X1363T5 · +2 more
  21. O-RING NSN 5331-01-198-1602 P/N 3-355-8-10-101-01 · 75G1OR607 · 110M1066A3 PIECE 7 · 3-355-8-10-101-01 · +2 more
  22. O-RING NSN 5331-01-197-6294 P/N 9126-733 · 9126-733 · 43451A-126 · 43451A126 · +2 more
  23. O-RING NSN 5331-01-197-0882 P/N 993-3441 · 9933441 · 10524203 · 21522115-418 · +2 more
  24. O-RING NSN 5331-01-194-8966 P/N 5740543 · 9002-00181-48 · 5331PL0704785 · 9002-00181-48 · +2 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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