PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3581-212O-Ring

Society of Automotive Engineers Inc · NSN 5331-01-483-2243 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-483-2243 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-483-2243. Primary manufacturer part number: AS3581-212.
Features
  • O-Ring — FSC 5331
  • Color: BLACK
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Center Hole Diameter: 0.853 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
  • Material Document and Classification: SAE-AMS7259 NATIONAL SPEC SINGLE MATERIAL RESPONSE
  • Criticality Code Justification: MATT
  • Material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM
  • Hardness Rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Polymethylene-Perfluoroalkylene Class Fkm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-483-2243, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-483-2243
Primary Part NumberAS3581-212
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusACTIVE
ColorBLACK
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Center Hole Diameter0.853 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
Material Document and ClassificationSAE-AMS7259 NATIONAL SPEC SINGLE MATERIAL RESPONSE
Criticality Code JustificationMATT
MaterialRUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM
Hardness Rating85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
Temp Rating-200.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-140-7664AS3581-212 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-166-1109 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
AS3581-212 Society of Automotive Engineers Inc (USA)
Related Parts
5331-00-140-7664INTERCHANGEABLE
O-RING
AS3581-212
5331-00-166-1109INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-01-483-2243?

NSN 5331-01-483-2243 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-483-2243?

NSN 5331-01-483-2243 has 1 cross-referenced part number: AS3581-212 (Society of Automotive Engineers Inc).

What NSN replaces 5331-01-483-2243?

There are 2 known substitutes for 5331-01-483-2243: 5331-00-140-7664, 5331-00-166-1109. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3581-212?

Key specifications for AS3581-212: Color: BLACK; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 0.853 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN; Material Document and Classification: SAE-AMS7259 NATIONAL SPEC SINGLE MATERIAL RESPONSE. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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