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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 5331-01-052-3351 P/N AN6230-45 · 2533405-267 · PRP568-267-4067-70 · MS28775-267 · +6 more
  2. O-RING NSN 5331-01-049-7212 P/N 2198045-1 · 2198045-1 · 2198045-1 · 960063-5 · +6 more
  3. O-RING NSN 5331-01-043-7758 P/N PRP568-264-4067-70 · MS28775-264 · MS28775-264 · 2-264 N304-75 · +6 more
  4. O-RING NSN 5331-01-043-1904 P/N AMS7259 · AS3581-244 · M83248/2-244 · MIL-R-83248/2 · +6 more
  5. O-RING NSN 5331-01-042-2825 P/N 400-201-14 · 200-724-16 · AMS3209 · AS568-238 · +6 more
  6. O-RING NSN 5331-01-039-2521 P/N AS568-111-AMS7276 · AS568-111 · ARP568-111MILR25897TY1CL1 · L180-111 · +6 more
  7. O-RING NSN 5331-01-033-8621 P/N 109A903182 · 90318 · 888F053002 ITEM 33 · PRP568-356-4024-65 · +6 more
  8. O-RING NSN 5331-01-032-0607 P/N 014-7377 · 16606A35-090 · PRP568-014-4024-65 · AS568-014C71 · +6 more
  9. O-RING NSN 5331-01-031-8258 P/N 2507294-13 · 2507294-13 · 020022N0674 · 020022N0674 · +6 more
  10. O-RING NSN 5331-01-031-8251 P/N 2507294-72 · 2507294-72 · 2507294-72 · 95000-019 · +6 more
  11. O-RING NSN 5331-01-031-1331 P/N 2507294-39 · 2507294-39 · AS568-234MIL-G- 21569B CL1 · 07-FC-025-P · +6 more
  12. O-RING NSN 5331-01-031-0790 P/N 212-11646 · B67112-212 · BACP11AC212 · B-212TH 1058 · +6 more
  13. O-RING NSN 5331-00-759-2136 P/N M25988/1-118 · S8057AR162 · S8057AR162 · M25988/1-118 · +6 more
  14. O-RING NSN 5331-00-759-1692 P/N MILR25988 · M25988/1-130 · MIL-R-25988/1A · MIL-DTL-25988/1 · +6 more
  15. O-RING NSN 5331-00-752-4057 P/N 9636PC31 · 20203,PC.30 · 8721PC40 · 20211PC17 · +6 more
  16. O-RING NSN 5331-00-727-6160 P/N PRP568-039-4024-65 · ARP568-039 · AS3578-039 · MS9021-039 · +6 more
  17. O-RING NSN 5331-00-727-5154 P/N 214939 · 60K41200 · 600463 · 214939 · +6 more
  18. O-RING NSN 5331-00-720-2536 P/N PRP568-281-4024-65 · AS3578-281 · 5331PL0931107 · MS9021-281 · +6 more
  19. O-RING NSN 5331-00-715-7724 P/N 73645-52PFC28 · 22546-28 · 91719949 · 91719949 · +6 more
  20. O-RING NSN 5331-00-702-7358 P/N MIL-R-25988/1A · MIL-DTL-25988/1 · M25988/1-110 · MILR25988 · +6 more
  21. O-RING NSN 5331-00-702-2639 P/N 8902746-2 · 213-060307 · 213-060307-00-2303 · 335C840H02 · +6 more
  22. O-RING NSN 5331-00-689-6467 P/N 479V208 · 479V209 · 28-90369 PC 5 · 500672-7 · +6 more
  23. O-RING NSN 5331-00-689-6459 P/N N830SHT1PC590CP · NAS1611-015 · 29-00122 PC 7 · 29-00122PC 7 CP · +6 more
  24. O-RING NSN 5331-00-689-6456 P/N 329V610CP · 500572-4CP · 2-018 E515-80 · 22-38625 PC 11 · +6 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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