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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 5331-01-113-5624 P/N 803-1385714-8-4 · M83461/1-232 · AMS-P-83461/1 · MIL-P-83461/1 · +10 more
  2. O-RING NSN 5331-01-107-4950 P/N AMS-P-83461/1 · M83461/1-020 · M83461/1-020 · MIL-P-83461/1-020 · +10 more
  3. O-RING NSN 5331-01-106-0942 P/N NAS1594-120 · AMS7259 · AS3581-120 · MIL-R-83248/2 · +10 more
  4. O-RING NSN 5331-01-105-9155 P/N PRP443-19359 · 443-19359 · PRP568-443-9009-90 · NAS1594-443 · +10 more
  5. O-RING NSN 5331-01-105-9152 P/N 249-19359 · PRP249-19359 · PRP568-249-9009-90 · NAS1594-249 · +10 more
  6. O-RING NSN 5331-01-094-9071 P/N 7377-048 · P48026-048 · 4067-70-048 · AS28775-048 · +10 more
  7. O-RING NSN 5331-01-030-6673 P/N S8990-020 · S8990-020 · S8990-020 · S8990-020 · +10 more
  8. O-RING NSN 5331-01-019-2452 P/N NAS1593-170 · AMS 7276G · AS3209-170 · M83248/1-170 · +10 more
  9. O-RING NSN 5331-01-017-4152 P/N 010-11506 · PRP010-11506 · 25C85-31 · AG25C85 · +10 more
  10. O-RING NSN 5331-01-016-7550 P/N M83248/1-904 · MIL-R-83248/1 · 5331PL1810522 · 5331PL0899173 · +10 more
  11. O-RING NSN 5331-01-015-6360 P/N 163-8307 · PRP 163/7507 · 163-7507 · 0561C0031-5 · +10 more
  12. O-RING NSN 5331-01-011-2204 P/N 199266 · 2-136N674 · 2-136N674-70 · AS568-136 · +10 more
  13. O-RING NSN 5331-01-006-6912 P/N 500834 · 7385926 FIND NO. 186 · AS568-140 · D2000 · +10 more
  14. O-RING NSN 5331-01-006-2122 P/N 845-8219247 ITEM 67 · 845-8219247-067 · AS3209-372 · AS568-372 AMS3209 · +10 more
  15. O-RING NSN 5331-01-006-0318 P/N 563-7067896-43 · AS3209-459 · AMS 7276 · M83248/1-459 · +10 more
  16. O-RING NSN 5331-01-005-4064 P/N 571034-02 · 581147 · MIL-R-25988/1 · M25988/1-902 · +10 more
  17. O-RING NSN 5331-01-005-4059 P/N 6002-102 PIECE · 21333 FIND 31 · MIL-R-83248/1 · MIL-R-83248C TYPE 1 CLASS 1 · +10 more
  18. O-RING NSN 5331-01-005-4055 P/N AS3209-334 · AMS 7276G · MIL-R-83248/1 · M83248/1-334 · +10 more
  19. O-RING NSN 5331-01-005-3204 P/N 15-3818 PC 41 · NAS1593-431 · NAS1593 · AS3209-431 · +10 more
  20. O-RING NSN 5331-01-005-2307 P/N ARP568-443MILG23652TY1 · AS3209-443 · M83248/1-443 · MIL-R-83248/1 · +10 more
  21. O-RING NSN 5331-01-004-7227 P/N AS568-119MILP5516-70DURM · MS28775-119 · MIL-P-25732 · 5331PL0809453 · +10 more
  22. O-RING NSN 5331-00-985-0042 P/N D3113427A · 1095PC17 · AS568-124 · 2-124 N674-70 · +10 more
  23. O-RING NSN 5331-00-982-2492 P/N PRP016-11646 · 016-11646 · B63115-016 · PRP568-016-1133-60 · +10 more
  24. O-RING NSN 5331-00-981-3736 P/N 25714 · AS3582-113 · AMS 3304 · MS9068-113 · +10 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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