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Federal Supply Class
Federal Supply Class 5331 — O-Rings — clustered reference parts from bounded catalog scan. Classification does not certify fit-for-purpose, interchangeability, trace sufficiency or stock readiness.
Why buyers stay
Replied to by a named sales executive
Sal Faruqui owns inbound RFQs end-to-end — no generic queue, one contact through fulfillment.
Priority review for AOG lines
Routine RFQs are reviewed promptly; AOG-marked lines bypass the routine queue and are prioritized for callback.
Documents lined up before purchase
FAA Form 8130-3, ATA-106, Certificate of Conformance, and mill-cert requirements are captured before quoting.
PUB LOG referenceEvidence-safe related rows — not stock, price, or GTIN claims. Bounded sample; always confirm particulars with procurement engineering and records teams.
SAE Aerospace Standard AS3569-258 O-Ring — Approvals and Conformities NSN 5331-00-291-7380 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN 9A991.d Color Family Black Manufacturer P/N AS3569-258 Schedule B Code 4016.93.0000 Pack Quantity 1 Series AS3569 Ins
Supplier identity disclosed before award
You see who would ship the part before you commit. No anonymous resale, no last-minute supplier swap.
SAE Aerospace Standard AS3569-231 O-Ring — Approvals and Conformities NSN 5331-00-291-7293 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN 9A991.d Color Family Black Manufacturer P/N AS3569-231 Schedule B Code 4016.93.0000 Pack Quantity 1 Series AS3569 Ins
Military Standard MS9967-133 O-Ring — Approvals and Conformities NSN 5331-01-317-6349 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN EAR99 Color Family Black Manufacturer P/N MS9967-133 Schedule B Code 4016.93.0000 Pack Quantity 1 Series MS9967 Color
Military Standard MS29513-135 O-Ring - 20/Pack — Approvals and Conformities NSN 5331-01-514-0949 Product Attributes Country of Origin United States Shipping Weight 0.02 pounds ECCN 9A991.d Color Family Black Manufacturer P/N MS29513-135 Schedule B Code 4016.93.0000 Pack Quantity 20 Ship Dimensions
SAE Aerospace Standard AS3578-112 O-Ring - 20/Pack — Approvals and Conformities NSN 5331-00-582-7480 Product Attributes Country of Origin United States Shipping Weight 0.06 pounds ECCN EAR99 Color Family Black Manufacturer P/N AS3578-112 Schedule B Code 4016.93.0000 Pack Quantity 20 Series AS3578 Insid
Military Standard MS29513-229 O-Ring — Approvals and Conformities NSN 5331-00-291-3273 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN 9A991.d Color Family Black Manufacturer P/N MS29513-229 Schedule B Code 4016.93.0000 Pack Quantity 1 Series MS29513 I
M25988-1-225 — Military Specification M25988/1-225 O-Ring — Approvals and Conformities NSN 5331-00-288-2020 MIL-SPEC# MIL-R-25988 Alternate PN#s AE18688-225, 10163263 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN EAR99 Color Family Black Manufacturer P/N M25988/1-225 Sch
Military Standard MS29513-044 O-Ring - 12/Pack — Approvals and Conformities NSN 5331-00-004-5074 Product Attributes Country of Origin United States Shipping Weight 0.012 pounds ECCN EAR99 Color Family Black Manufacturer P/N MS29513-044 Schedule B Code 4016.93.0000 Pack Quantity 12 Series MS29513 Co
Military Standard MS29513-022 O-Ring - 20/Pack — Approvals and Conformities NSN 5331-00-250-0230 Product Attributes Country of Origin United States Shipping Weight 0.02 pounds ECCN 9A991.d Color Family Black Manufacturer P/N MS29513-022 Schedule B Code 4016.93.0000 Pack Quantity 20 Series MS29513 I
Military Standard MS29513-438 O-Ring — Approvals and Conformities NSN 5331-00-925-7827 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN EAR99 Color Family Black Manufacturer P/N MS29513-438 Schedule B Code 4016.93.0000 Pack Quantity 1 Color Black Materi
SAE Aerospace Standard AS3578-260 O-Ring — Approvals and Conformities NSN 5331-00-892-4183 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN EAR99 Color Family Black Manufacturer P/N AS3578-260 Schedule B Code 4016.93.0000 Pack Quantity 1 Series AS3578 Insid
National Aerospace Standard NAS1611-017A O-Ring - 3/Pack — Approvals and Conformities NSN 5331-00-302-9952 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN 9A991.d Color Family Black Manufacturer P/N NAS1611-017A Schedule B Code 4016.93.0000 Pack Quantity 3 Ship Dimensions
SAE Aerospace Standard AS3578-124 O-Ring - 25/Pack — Approvals and Conformities NSN 5331-00-584-1230 Product Attributes Country of Origin United States Shipping Weight 0.075 pounds ECCN EAR99 Color Family Black Manufacturer P/N AS3578-124 Schedule B Code 4016.93.0000 Pack Quantity 25 Series AS3578 Insi
SAE Aerospace Standard AS3578-145 O-Ring — Approvals and Conformities NSN 5331-01-405-9920 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN EAR99 Color Family Black Manufacturer P/N AS3578-145 Schedule B Code 4016.93.0000 Pack Quantity 1 Series AS3578 Insid
SAE Aerospace Standard AS3209-382 O-Ring - 50/Pack — Approvals and Conformities NSN 5331-01-005-0529 MIL-SPEC# AMS7276 Product Attributes Country of Origin United States Shipping Weight 0.05 pounds ECCN 9A991.d Color Family Black Manufacturer P/N AS3209-382 Schedule B Code 4016.93.0000 Pack Quantity 50
Military Standard MS9386-040 O-Ring - 5/Pack — Approvals and Conformities NSN 5331-00-338-4205 Product Attributes Country of Origin United States Shipping Weight 0.04 pounds ECCN EAR99 Color Family Black Manufacturer P/N MS9386-040 Schedule B Code 4016.93.0000 Pack Quantity 5 Series MS9386 Color
Military Standard MS28775-361 O-Ring — Approvals and Conformities NSN 5331-01-183-4059 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN 9A991.d Color Family Black Manufacturer P/N MS28775-361 Schedule B Code 4016.93.0000 Pack Quantity 1 Series MS28775 Co
Military Standard MS29561-235 O-Ring — Approvals and Conformities NSN 5331-00-892-1646 Product Attributes Country of Origin United States Shipping Weight 0.003 pounds ECCN 9A991.d Color Family Black Manufacturer P/N MS29561-235 Schedule B Code 4016.93.0000 Pack Quantity 1 Series MS29561 C
SAE Aerospace Standard AS3582-005 O-Ring - 25/Pack — Approvals and Conformities NSN 5331-00-818-0223 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN EAR99 Color Family Black Manufacturer P/N AS3582-005 Schedule B Code 4016.93.0000 Pack Quantity 25 Series AS3582 Insi
Military Standard MS28775-175 O-Ring — Approvals and Conformities NSN 5331-01-258-0875 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN 9A991.d Color Family Black Manufacturer P/N MS28775-175 Schedule B Code 4016.93.0000 Pack Quantity 1 Series MS28775 In
National Aerospace Standard NAS1611-144 O-Ring - 25/Pack — Approvals and Conformities NSN 5331-01-169-0085 Product Attributes Country of Origin United States Shipping Weight 0.025 pounds ECCN 9A991.d Color Family Black Manufacturer P/N NAS1611-144 Schedule B Code 4016.93.0000 Pack Quantity 25 Series NAS1611
Military Standard MS28775-146 O-Ring — Approvals and Conformities NSN 5331-00-835-7693 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN 9A991.d Color Family Black Manufacturer P/N MS28775-146 Schedule B Code 4016.93.0000 Pack Quantity 1 Series MS28775 Co
SAE Aerospace Standard AS3569-111 O-Ring — Approvals and Conformities NSN 5331-00-585-0871 Product Attributes Country of Origin United States Shipping Weight 0.001 pounds ECCN 9A991.d Color Family Black Manufacturer P/N AS3569-111 Schedule B Code 4016.93.0000 Pack Quantity 1 Series AS3569 Ins
Military Standard MS28775-348 O-Ring — Approvals and Conformities NSN 5331-00-579-3159 Product Attributes Country of Origin United States Shipping Weight 0.01 pounds ECCN 9A991.d Color Family Black Manufacturer P/N MS28775-348 Schedule B Code 4016.93.0000 Pack Quantity 1 Ship Dimensions 6