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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 5331-00-213-8722 P/N AS568-014 · MIL-G-1149 TY I CL 5 · 8200-14 · 820014 · +6 more
  2. O-RING NSN 5331-00-211-9143 P/N NAS1594-116 · AMS7259 · AS3581-116 · M83248/2-116 · +6 more
  3. O-RING NSN 5331-00-202-1061 P/N 4680-211 · 933693 · NAS1593-211 · P603-16 · +6 more
  4. O-RING NSN 5331-00-171-5820 P/N Z053074810 · 74810 · 74810 · Z053074810 · +6 more
  5. O-RING NSN 5331-00-171-5371 P/N 11229 · KS1321SUB1 · 157D1-0808 · KS1321 · +6 more
  6. O-RING NSN 5331-00-168-5377 P/N AS3209-127 · AS3209-127 · 5331PL0212942 · AS3209-127 · +6 more
  7. O-RING NSN 5331-00-166-5992 P/N AMS-P-5315 · MS29513-220 · 5331PL2099404 · MS29513-220 · +6 more
  8. O-RING NSN 5331-00-166-1111 P/N 395-02 · 40688-8 PC 22 · AMS7259 · M83248/2-220 · +6 more
  9. O-RING NSN 5331-00-166-1110 P/N 216-19359 · MILR83248 · AS3581-216 · M83248/2-216 · +6 more
  10. O-RING NSN 5331-00-166-1091 P/N Y49022-014 · AMS7259 · AS3581-022 · MILR83248 · +6 more
  11. O-RING NSN 5331-00-166-1077 P/N M83248/2-004 · WE-9048-36X1W1 ITEM 18 · MILR83248 · AS3581-004 · +6 more
  12. O-RING NSN 5331-00-162-5963 P/N 1FX49 · 1FX49 · 4F37030-258 · 28030 · +6 more
  13. O-RING NSN 5331-00-143-6823 P/N 69494J156 · AS3582-156 · MS9068-156 · 2-156 S604-70 · +6 more
  14. O-RING NSN 5331-00-132-6973 P/N PRP218-11737 · 218-11737 · MS9386-218 · 5331PL0652492 · +6 more
  15. O-RING NSN 5331-00-130-1387 P/N 2-156N674-70 · P49708-0156 · 58-14-09 · AS568B-156 · +6 more
  16. O-RING NSN 5331-00-104-9450 P/N 2-013L308-8 · 182560 · ARP568-013L308-8 · 2-013 L308-80 · +6 more
  17. O-RING NSN 5331-00-104-7620 P/N AMS-P-5516 CL A · AMS-P-5516 · AS568-152 · AS568-152 AMS-P-5516 CLASS A · +6 more
  18. O-RING NSN 5331-00-103-1987 P/N AMS7276 · AS3208-08 · 5331PL0140339 · 10117048 · +6 more
  19. O-RING NSN 5331-00-103-1766 P/N AS3209-152 · AS3209-152 · MILR83248 · 5331PL0213687 · +6 more
  20. O-RING NSN 5331-00-103-1579 P/N AS3209-120 · AS3209-120 · 5331PL0140393 · Z00.N7423510008TBM · +6 more
  21. O-RING NSN 5331-00-086-2461 P/N 13066 · 649-602-905-0 · NAS1612-5A · NAS1612-5 · +6 more
  22. O-RING NSN 5331-00-079-0216 P/N N94-84910 · 0XN94-84910 · MS28778-10CP · MS28778-10 · +6 more
  23. O-RING NSN 5331-00-071-6651 P/N 4564908 · 2HS221 · ARP 908 · 911A4-987 · +6 more
  24. O-RING NSN 5331-00-061-5471 P/N 10617878-133 · AS3551-133 · 5331PL2034953 · MS9241-133 · +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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