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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 5331-01-006-0310 P/N AS3209-353 · AMS 7276 · M83248/1-353 · MIL-R-83248/1 · +7 more
  2. O-RING NSN 5331-01-006-0307 P/N AS3209-319 · MIL-R-83248C TYPE 1 CLASS 1 · MIL-R-83248/1 · M83248/1-319 · +7 more
  3. O-RING NSN 5331-01-006-0305 P/N AS3209-318 · AMS 7276 · MIL-R-83248/1 · MIL-R-83248C TYPE 1 CLASS 1 · +7 more
  4. O-RING NSN 5331-01-006-0304 P/N AS3209-317 · MIL-R-83248C TYPE 1 CLASS 1 · MIL-R-83248/1 · M83248/1-317 · +7 more
  5. O-RING NSN 5331-01-006-0303 P/N 8HB235 · 8HB235 · MIL-R-83248/1 · M83248/1-322 · +7 more
  6. O-RING NSN 5331-01-005-8366 P/N ARP568-153AMS3651 · ARP568-153T · 441.0160.0015 · 00050-447 · +7 more
  7. O-RING NSN 5331-01-005-4050 P/N NAS1593 · NAS1593-436 · AS3209-436 · MIL-R-83248/1 · +7 more
  8. O-RING NSN 5331-01-005-3706 P/N 6V-3955 · AS3209-312 · MIL-R-83248/1 · M83248/1-312 · +7 more
  9. O-RING NSN 5331-01-005-3200 P/N 551-7610107-002 · AMS 7276 · AS3209-202 · MIL-R-83248/1 · +7 more
  10. O-RING NSN 5331-01-005-2310 P/N AS3209-453 · AMS7276G · MIL-R-83248/1 · M83248/1-453 · +7 more
  11. O-RING NSN 5331-01-005-0544 P/N 1479RA PIECE 26 · AS3209-430 · AMS7276G · MIL-R-83248/1 · +7 more
  12. O-RING NSN 5331-01-005-0534 P/N AS3209-387 · AMS7276 · MIL-R-83248/1 · M83248/1-387 · +7 more
  13. O-RING NSN 5331-01-005-0512 P/N AS3209-176 · MIL-R-83248/1 · M83248/1-176 · MS9388-176 · +7 more
  14. O-RING NSN 5331-01-005-0507 P/N AS3209-107 · MIL-R-83248/1 · M83248/1-107 · M83248-1-107 · +7 more
  15. O-RING NSN 5331-01-004-9552 P/N S9515-AL-MMA-010,7-53 ITEM 7 · NV822201 FIND 185 · AS3209-203 · MIL-R-83248/1 · +7 more
  16. O-RING NSN 5331-00-997-7230 P/N C312047-19 · AS568-214AMS3304 · AS3582-214 · MS9068-214 · +7 more
  17. O-RING NSN 5331-00-990-5194 P/N PRP914-35142-70 · MS29561-135 · MS29561-135 · 5331PL1332944 · +7 more
  18. O-RING NSN 5331-00-983-9883 P/N 2-264-N674-70 · N72264 · 27-409-209 · 0561C0031-23 · +7 more
  19. O-RING NSN 5331-00-975-1739 P/N 133-11646 · PRP133-11646 · PRP568-133-1133-60 · B63115-133 · +7 more
  20. O-RING NSN 5331-00-964-2807 P/N GS570K4 · AMS3302 · AS568-241 · 2-241 · +7 more
  21. O-RING NSN 5331-00-951-1030 P/N AS3582-034 · 2-034S604-7 · AS3582-034 · 5331PL0657684 · +7 more
  22. O-RING NSN 5331-00-940-8426 P/N 2-116 E515-80 · 22-38627PC19 · 19126PC20CP · AN6227-14CP · +7 more
  23. O-RING NSN 5331-00-934-9794 P/N AS3582-025 · 31626P4 · MS9068-025 · 2-025 S604-70 · +7 more
  24. O-RING NSN 5331-00-933-7073 P/N SM-B-544228 · 5330009337073 · SMB544228 · 10352013 · +7 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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