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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 5331-00-097-6395 P/N 568-047COMP1235-50 · ABS3302 · AS568-047 · AS119 · +2 more
  2. O-RING NSN 5331-00-090-0707 P/N 512571 · 942 · 512571 · 17222 · +2 more
  3. O-RING NSN 5331-00-089-8976 P/N 308458 · 308458 · 308458 · 10022281 · +2 more
  4. O-RING NSN 5331-00-082-0569 P/N 20A11CM225 · W247462PC456B · 20A11CM225 · W247462PC456B · +2 more
  5. O-RING NSN 5331-00-080-9075 P/N MS29561-124 · MS29561-124 · MS29561-124 · 2-124 47-071 · +2 more
  6. O-RING NSN 5331-00-080-5610 P/N AS568-162 · AMS-P-5315 · 1596816P9 · AMS-P-5315 · +2 more
  7. O-RING NSN 5331-00-080-0706 P/N PRP568-243-4024-65 · AS3578-243 · MS9021-243 · 2-243 N506-65 · +2 more
  8. O-RING NSN 5331-00-078-8959 P/N 047-355 · 700-047-355 · FNC500-70PC429 · F-NC500-140 PIECE 429 · +2 more
  9. O-RING NSN 5331-00-078-0154 P/N 5-108N219-7 · 5-108N219-70 · 5-108 N674-70 · 00902 · +2 more
  10. O-RING NSN 5331-00-067-4877 P/N 222614PC67 · 4400871-2340 · 217495 REV D PIFCE 12 · J200AB234 · +2 more
  11. O-RING NSN 5331-00-065-4823 P/N 343902R1 · 343902R1 · ARP568-026C40 · ARP568-026-1664 · +2 more
  12. O-RING NSN 5331-00-061-2209 P/N MS29561-026 · MS29561-026 · MS29561-026 · 2-026 47-071 · +2 more
  13. O-RING NSN 5331-00-059-8753 P/N AS3551-007 · 5331PL1338676 · MS9241-007 · 1885336PC64 · +2 more
  14. O-RING NSN 5331-00-059-6515 P/N AS3551-228 · 5331PL0808754 · MS9241-228 · M1534-100849 · +2 more
  15. O-RING NSN 5331-00-059-3113 P/N A-A-59588 CL 2A GR 40 · AS568-018 · GD00990186 · 8018 · +2 more
  16. O-RING NSN 5331-00-054-9392 P/N AS568B-007 · MIL-PRF-1149D · 2-7C557-7 · 2-7C147-7 · +2 more
  17. O-RING NSN 5331-00-054-3689 P/N 0XN91-81610 · N91-81610 · N829SH1PC80XCLN · 77649-21X2PC11CP · +2 more
  18. O-RING NSN 5331-00-053-9467 P/N 031-7377 · 031-737-70AN · MS28775-031 · 2-031 N756-75 · +2 more
  19. O-RING NSN 5331-00-052-2331 P/N S8990-215 · S8990-215 · S8990-215 · 5331PL0970189 · +2 more
  20. O-RING NSN 5331-00-051-4288 P/N S8057BF225 · S8057BF225 · S8057BF225 · BACP11P125 · +2 more
  21. O-RING NSN 5331-00-050-9325 P/N 95086112 · 20A11CM125 · 20A11CM125 · 20A11CM125 · +2 more
  22. O-RING NSN 5331-00-047-3151 P/N 1531758-79 · 1531758-79 · 645552 · 998990-3,5X1.1ES · +2 more
  23. O-RING NSN 5331-00-045-7410 P/N 25K40316 · A-2916-AU · P2930425 · 238-5238 · +2 more
  24. O-RING NSN 5331-00-045-7295 P/N NAS1593-037 · ARP568-037MILR25897 · 5330PL0926559 · 4400571-0370 · +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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