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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 5331-00-166-1022 P/N PRP025-19357 · 025-19357 · 123-025-5 · 649-393-025-0 · +38 more
  2. O-RING NSN 5331-00-113-3804 P/N C0123AS · DU9082PC16 · 1H29190699 · 008-1197-70 · +38 more
  3. O-RING NSN 5331-01-213-8344 P/N 7377-021 · MS28775-021 · 199973 · P48026-021 · +37 more
  4. O-RING NSN 5331-01-106-7286 P/N PRP6230-39 · 261-7377 · 261-846-70 · A49408MZZ · +37 more
  5. O-RING NSN 5331-00-580-6586 P/N 10002-011 · D-G7500-2 · 5584527 · 12340395 · +37 more
  6. O-RING NSN 5331-00-291-3275 P/N GS570EM261 · 7866-261 · 60-P-31-261 · NB398261-72 · +37 more
  7. O-RING NSN 5331-00-265-1089 P/N 7413738 · 7866-125 · A593-50861G1 · A26405A · +37 more
  8. O-RING NSN 5331-00-248-3843 P/N 7866-15 · 7866-015 · R1307P015 · 457-60-15 · +37 more
  9. O-RING NSN 5331-00-198-6163 P/N 501225 · N90-81614 · 19511P11 · N881PC8 · +37 more
  10. O-RING NSN 5331-00-194-3724 P/N A4-298 · DM6631ALTNPC16 · DM6782PC16 · 395-4812 · +37 more
  11. O-RING NSN 5331-00-165-1977 P/N 920-19357 · PRP920-19357 · D4000FF ITEM 33 · D11200FF ITEM 33 · +37 more
  12. O-RING NSN 5331-00-818-4591 P/N 7377-136 · MS28775-136 · 4067-70-136 · PRP568-136-4067-70 · +36 more
  13. O-RING NSN 5331-00-579-3162 P/N 546877 · D49267 ITEM 13 · N-579 PIECE 22 · A49371MZZ · +36 more
  14. O-RING NSN 5331-00-421-9387 P/N D11400 ITEM 25 · 3799813 FIND 10 · D1000 ITEM 25 · D1000FF ITEM 21 · +36 more
  15. O-RING NSN 5331-00-330-3307 P/N AS3209-141 · 141 C0MP 19357 · PRP141-19357 · 141-19357 · +36 more
  16. O-RING NSN 5331-00-291-3069 P/N AS568-236MIL-P-5315 · MS29513-236 · GS570EM236 · 442-012-360 · +36 more
  17. O-RING NSN 5331-00-250-1209 P/N D36179 · 3229858 · PRP902-15 · 210-750-70 · +36 more
  18. O-RING NSN 5331-00-250-0232 P/N AS29513-214 · 902-19-7399 · 7866-214 · 214-7399 · +36 more
  19. O-RING NSN 5331-00-167-5124 P/N A49769-15MZZ · A49769-15 · A49306MZZ · NF67-300-9 · +36 more
  20. O-RING NSN 5331-00-165-1965 P/N 12267816-13 · 248-17107A · 265073-0001 · AS3209-248 · +36 more
  21. O-RING NSN 5331-00-054-6858 P/N 546858 · 340-6700-999848PCQ3 · 417-4801-68867ALT5DLTPCD4 · 571-6700-1302190REVAPC22 · +36 more
  22. O-RING NSN 5331-00-845-9685 P/N MS28778-124 · MS28775-124 · 60-902 PIECE 50 · MS28775-124 · +35 more
  23. O-RING NSN 5331-00-641-0119 P/N GS570EM134 · 134 · 7866-134 · 60-P-31-134 · +35 more
  24. O-RING NSN 5331-00-595-6325 P/N 610-0074-006 · 006-8307 · 16726367-010 · 2AN156 · +35 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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