PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3085-126O-Ring

Sae International Dba Sae International · NSN 5331-01-208-0643 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-208-0643 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-208-0643. Primary manufacturer part number: AS3085-126.
Features
  • O-Ring — FSC 5331
  • Elongation Percentage: 125 MAXIMUM
  • Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
  • Material: RUBBER
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Center Hole Diameter: 1.350 INCHES MINIMUM AND 1.374 INCHES MAXIMUM IN
  • 2 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-208-0643, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN5331-01-208-0643
Primary Part NumberAS3085-126
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusACTIVE
Elongation Percentage125 MAXIMUM
Temp Rating-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
MaterialRUBBER
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Center Hole Diameter1.350 INCHES MINIMUM AND 1.374 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-01-277-6593 INTERCHANGEABLE
O-Ring
5330-01-290-4184AS3085-126 INTERCHANGEABLE
Packing,preformed
Allison Transmission Inc Dba Allison Transmission, Inc
Cross-Reference Index
Part NumberManufacturer
AS3085-126 Society of Automotive Engineers Inc (USA)
AS3085-126 PRIMARY Sae International Dba Sae International (USA)
Related Parts
5331-01-277-6593INTERCHANGEABLE
O-RING
5330-01-290-4184INTERCHANGEABLE
PACKING,PREFORMED
AS3085-126

Frequently Asked Questions

What is NSN 5331-01-208-0643?

NSN 5331-01-208-0643 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-208-0643?

NSN 5331-01-208-0643 has 2 cross-referenced part numbers: AS3085-126 (Society of Automotive Engineers Inc), AS3085-126 (Sae International Dba Sae International).

What NSN replaces 5331-01-208-0643?

There are 2 known substitutes for 5331-01-208-0643: 5331-01-277-6593, 5330-01-290-4184. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3085-126?

Key specifications for AS3085-126: Elongation Percentage: 125 MAXIMUM; Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF; Material: RUBBER; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. 6 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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