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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 5331-01-307-7557 P/N MS28775-268 · MIL-P-25732C · AN123928 · MS28775-268 · +2 more
  2. O-RING NSN 5331-01-307-1798 P/N 237-6008 · 125751 · 237-60008 · 237-6008 · +2 more
  3. O-RING NSN 5331-01-306-9606 P/N MS28775-463 · 20A11-X-M-1003 · MS28775-463 · SAE-AS28775 · +2 more
  4. O-RING NSN 5331-01-305-3853 P/N AS568B-443 · 00430K · 2-443 E515-80 · 2-443E515-80 · +2 more
  5. O-RING NSN 5331-01-304-5149 P/N 10080226 · 3818885 · 70861 · 3818885 · +2 more
  6. O-RING NSN 5331-01-303-3848 P/N AM-1267 · US-70455 ITEM 42 · AM-1267 · AM-1267 · +2 more
  7. O-RING NSN 5331-01-303-3847 P/N H-45112-2-2064 · US-70455 ITEM 30 · US-70455 ITEM 30 · H-45112-2-2064 · +2 more
  8. O-RING NSN 5331-01-301-5003 P/N 0129978348 · 0129978348 · 4538741-107 · 4538741-107 · +2 more
  9. O-RING NSN 5331-01-301-4988 P/N 0169973648 · 0169973648 · 4538742-832 · 0059978148 · +2 more
  10. O-RING NSN 5331-01-298-6136 P/N 7003E001 ITEM 175 · 12KP402 · 12KP402 · 711510-2 · +2 more
  11. O-RING NSN 5331-01-297-4088 P/N AS3582-266 · 9541B · MS9068-266 · 2-266-S604-70 · +2 more
  12. O-RING NSN 5331-01-296-4056 P/N 19KP981 · 19KP981 · 3-914NBR · 3-914N552-90 · +2 more
  13. O-RING NSN 5331-01-295-9127 P/N NAS1611-023 · NAS1611-023ACP · NAS1611-023A · 5331PL2182385 · +2 more
  14. O-RING NSN 5331-01-293-8697 P/N 1726660 LINE 11 · 1008-25D LINE 11 · 0227-32 · 0227-32 · +2 more
  15. O-RING NSN 5331-01-293-1770 P/N A-A-59588 · AS568-924 · 3-924-S604-70 · 3-924-S604S-70 · +2 more
  16. O-RING NSN 5331-01-290-9591 P/N 5-200162-K-001 PIECE 35147 · E-200162-K-001 DETAIL 35147 · STYLE 317 · E-200162-K-001 DETAIL 35147 · +2 more
  17. O-RING NSN 5331-01-290-4504 P/N 1S-5422PC127 · AS29513-233 · SAE-AS29513-233 · MS29513-233 · +2 more
  18. O-RING NSN 5331-01-290-2113 P/N 75G-0060MPC22 · 70-G-016-MPC2 · M83248/1-015 · 4872093 · +2 more
  19. O-RING NSN 5331-01-290-1683 P/N SR8024-70-015 · 2-015N918-70 · N0602-2-015 · N0918 2-015 · +2 more
  20. O-RING NSN 5331-01-288-7156 P/N NAS1613 · NAS1611-003 · NAS1611-003CP · 58280-TAB ITEM 15 · +2 more
  21. O-RING NSN 5331-01-288-7154 P/N NAS1611-018 · NAS1611-018CP · NAS1613 · 63750-2 ITEM 18 · +2 more
  22. O-RING NSN 5331-01-287-7312 P/N 2DR588 · 2DR588 · 3914092 · 5331PL0816602 · +2 more
  23. O-RING NSN 5331-01-287-4825 P/N NAS1611-127 · NAS1613 · NAS1611-127CP · NAS1601-127 · +2 more
  24. O-RING NSN 5331-01-286-3125 P/N US-71243 ITEM 8 · H/45112/2/1618 · US-71243 ITEM 8 · H/45112/2/1618 · +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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