PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3209-231O-Ring

Sae International Dba Sae International · NSN 5331-00-165-1949 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-165-1949 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-165-1949. Primary manufacturer part number: AS3209-231.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 2.859 INCHES MINIMUM AND 2.915 INCHES MAXIMUM IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Center Hole Diameter: 2.589 INCHES MINIMUM AND 2.629 INCHES MAXIMUM IN
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Elongation Percentage: 125 MAXIMUM
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • 22 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-165-1949, 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 22 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-165-1949
Primary Part NumberAS3209-231
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Outside Diameter2.859 INCHES MINIMUM AND 2.915 INCHES MAXIMUM IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Center Hole Diameter2.589 INCHES MINIMUM AND 2.629 INCHES MAXIMUM IN
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Elongation Percentage125 MAXIMUM
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5331-00-165-1946AS3209-228 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
M83248/1-231 Society of Automotive Engineers Inc (USA)
AS3209-231 Society of Automotive Engineers Inc (USA)
M83485/1-231 Zf Industrieantriebe Witten Gmbh (DEU)
AS3209-231 Leonardo Spa Helicopters Division - Production Site (ITA)
M83485/1-231 Leonardo Spa Helicopters Division - Production Site (ITA)
S9413-231 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
5331PL0808664 Jednolity Indeks Materialowy - Uniform Material Index (POL)
10370042 Nimikkeistokeskus Ncb Finland (FIN)
AS3209-231 Freudenberg-Nok General Partnership Dba International Seal Co Inc (USA)
2-228-V747-75 Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
M83248/1-231 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILR83248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2-231V0747-75 Parker-Hannifin Corp Div O-Ring Division (USA)
SAE-AMS7276 Sae International Dba Sae International (USA)
AMS7276 Society of Automotive Engineers Inc (USA)
AMS7276 Sae International Dba Sae International (USA)
2-231V1164-75 Parker-Hannifin Corp Div O-Ring Division (USA)
2-231V1226-75 Parker-Hannifin Corp Div O-Ring Division (USA)
63997-22 Arvinmeritor Inc (USA)
7412293 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5331-00-165-1946INTERCHANGEABLE
O-RING
AS3209-228

Frequently Asked Questions

What is NSN 5331-00-165-1949?

NSN 5331-00-165-1949 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-165-1949?

NSN 5331-00-165-1949 has 22 cross-referenced part numbers: M83248/1-231 (Society of Automotive Engineers Inc), AS3209-231 (Society of Automotive Engineers Inc), M83485/1-231 (Zf Industrieantriebe Witten Gmbh), AS3209-231 (Leonardo Spa Helicopters Division - Production Site), M83485/1-231 (Leonardo Spa Helicopters Division - Production Site) and 17 more.

What NSN replaces 5331-00-165-1949?

There is 1 known substitute for 5331-00-165-1949: 5331-00-165-1946. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3209-231?

Key specifications for AS3209-231: Outside Diameter: 2.859 INCHES MINIMUM AND 2.915 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM; Center Hole Diameter: 2.589 INCHES MINIMUM AND 2.629 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-165-1949 still in active supply?

NSN 5331-00-165-1949 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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