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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 5331-01-026-2210 P/N 995 0940 · 390 1041 · 10524379 · 995 0940 · +2 more
  2. O-RING NSN 5331-01-026-0906 P/N 364-48575-000 REV D ITEM 125 · 028-13169-000 · 2-251C147-7 · 028 13169 000 · +2 more
  3. O-RING NSN 5331-01-025-7789 P/N 2026C873-70 · 2022C873-70 · 2-026C147-7 · 2-026C147-70 · +2 more
  4. O-RING NSN 5331-01-025-1904 P/N PRP568-351-4067-70 · MS28775-351 · MS28775-351 · 2-351 N304-75 · +2 more
  5. O-RING NSN 5331-01-024-4857 P/N AS3209-006 · MIL-R-83248/1 · AS3209-006 · ST3001-006 · +2 more
  6. O-RING NSN 5331-01-024-3351 P/N 2100-28 · ARP568-014S383- · 10163363 · AS568-014S383-70 · +2 more
  7. O-RING NSN 5331-01-023-7631 P/N AS568B-131 · AS568-131E540-80 · 4400483-1311 · 2-131E540-8 · +2 more
  8. O-RING NSN 5331-01-023-6632 P/N 1PS125 · AS3582-349 · MS9068-349 · 2-349S604-70 · +2 more
  9. O-RING NSN 5331-01-022-9270 P/N G49 · E-284PC5 · CD-1595REVD · CD-1651 · +2 more
  10. O-RING NSN 5331-01-022-9018 P/N AS568-902ZZR765CL2BGR70 · 5331PL0658308 · 3-902 NBR · 3-902S604-70 · +2 more
  11. O-RING NSN 5331-01-020-2310 P/N NA151 2-118 · PRP116-7507 · 116-7507 · NA151 · +2 more
  12. O-RING NSN 5331-01-019-6544 P/N 508874-15 · 5-102N219-70 · 5-102N219-7 · 5-102 · +2 more
  13. O-RING NSN 5331-01-018-7269 P/N PRP568-474-4067-70 · MS28775-474 · MS28775-474 · 2-474 N304-75 · +2 more
  14. O-RING NSN 5331-01-017-8910 P/N 58-110-06 · AS8791 · MIL-R-8791 · S11732-110 · +2 more
  15. O-RING NSN 5331-01-017-6536 P/N 231-7509 · 231-8309 · AS568-231 · D2000 2BG915B14B34E014EO34EF · +2 more
  16. O-RING NSN 5331-01-016-4387 P/N C10352-0002 · 5331 88 015 8381 · 2-033E540-8 · N141001050 · +2 more
  17. O-RING NSN 5331-01-015-8798 P/N S9026J161 · S9026J161 · S9026J161 · S9026J161 · +2 more
  18. O-RING NSN 5331-01-015-6657 P/N 5210-53 · P38-433PC43 · 10493045 · ARP568-910C557- 7 · +2 more
  19. O-RING NSN 5331-01-015-3371 P/N AS568-020 · AMS7271H · 5331PL1241454 · MS9021-020 · +2 more
  20. O-RING NSN 5331-01-014-6170 P/N NAS1611-036 · NAS1611-036A · NAS1613 · 5331PL2216221 · +2 more
  21. O-RING NSN 5331-01-014-1225 P/N 2-127E515-8 · 2-127E515-80 · NAS1613 · NAS1601-125 · +2 more
  22. O-RING NSN 5331-01-013-3018 P/N 4125-53 · P40-433PC26 · ARP568-125C557- 7 · 568-125C557-7 · +2 more
  23. O-RING NSN 5331-01-010-5008 P/N 9992130 · ARP568-130C557- 7 · N141008610 · 4130-53 · +2 more
  24. O-RING NSN 5331-01-010-2426 P/N PRP568-018-376-70 · 2-018C557-7 · C0557 2-018 · 2-018C557-7 · +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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