PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3209-135O-Ring

Sae International Dba Sae International · NSN 5331-01-005-0508 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-005-0508 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-005-0508. Primary manufacturer part number: AS3209-135.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 2.108 INCHES MINIMUM AND 2.154 INCHES MAXIMUM IN
  • Elongation Percentage: 125 MAXIMUM
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Center Hole Diameter: 1.908 INCHES MINIMUM AND 1.942 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • 38 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 5331-01-005-0508, 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 38 commercial cross-references from 27 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-01-005-0508
Primary Part NumberAS3209-135
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Outside Diameter2.108 INCHES MINIMUM AND 2.154 INCHES MAXIMUM IN
Elongation Percentage125 MAXIMUM
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Center Hole Diameter1.908 INCHES MINIMUM AND 1.942 INCHES MAXIMUM IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
8010-00-009-1962 INTERCHANGEABLE
Epoxy Coating Kit
5331-00-182-3687 INTERCHANGEABLE
O-Ring
5330-00-265-984944331-000 INTERCHANGEABLE
Gasket
Grimes Aerospace Company
5310-00-367-475044331 INTERCHANGEABLE
Nut
Dresser, Llc
5961-00-978-9667 INTERCHANGEABLE
Transistor
8010-01-053-2644 INTERCHANGEABLE
Epoxy Coating Kit
5120-01-398-7795 INTERCHANGEABLE
Socket,socket Wrench
5331-01-467-6523AS3209-135 INTERCHANGEABLE
Packing,preformed,a
Rolls Royce Corp
5331-01-536-3048 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
5331PL2178645 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AS3209-135 Leonardo Spa Helicopters Division - Production Site (ITA)
2-135-77-545 Parker-Hannifin Corp Div O-Ring Division (USA)
M83248/1-135 Leonardo Spa Helicopters Division - Production Site (ITA)
J221P135 General Electric Company (USA)
A12227 ITEM 32 The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc (USA)
44331 Standard-Thomson Corporation (USA)
10117134 Nimikkeistokeskus Ncb Finland (FIN)
2-135 V747-75 Parker-Hannifin Corp Div O-Ring Division (USA)
M83248/1-135 Seal Dynamics Llc (USA)
5331PL0212946 Jednolity Indeks Materialowy - Uniform Material Index (POL)
S9413-135 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
ASC1442314 Asc Pty Ltd (AUS)
5331PL1889971 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AS3209-135 Society of Automotive Engineers Inc (USA)
AS3209-135 PRIMARY Sae International Dba Sae International (USA)
J221P135 General Electric Company Dba Ge Aerospace (USA)
NAS1593-135 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
M83248/1-135 Baykar Piaggio Aerospace S.p.a. (ITA)
9004104-1350 Sauer-Sundstrand Hydro-Transmission Div (USA)
Related Parts
8010-00-009-1962INTERCHANGEABLE
EPOXY COATING KIT
5331-00-182-3687INTERCHANGEABLE
O-RING
5330-00-265-9849INTERCHANGEABLE
GASKET
44331-000
5310-00-367-4750INTERCHANGEABLE
NUT
44331
5961-00-978-9667INTERCHANGEABLE
TRANSISTOR
8010-01-053-2644INTERCHANGEABLE
EPOXY COATING KIT
5120-01-398-7795INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5331-01-467-6523INTERCHANGEABLE
PACKING,PREFORMED,A
AS3209-135
5331-01-536-3048INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-01-005-0508?

NSN 5331-01-005-0508 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 5331-01-005-0508?

NSN 5331-01-005-0508 has 38 cross-referenced part numbers: 5331PL2178645 (Jednolity Indeks Materialowy - Uniform Material Index), AS3209-135 (Leonardo Spa Helicopters Division - Production Site), 2-135-77-545 (Parker-Hannifin Corp Div O-Ring Division), M83248/1-135 (Leonardo Spa Helicopters Division - Production Site), J221P135 (General Electric Company) and 33 more.

What NSN replaces 5331-01-005-0508?

There are 9 known substitutes for 5331-01-005-0508: 8010-00-009-1962, 5331-00-182-3687, 5330-00-265-9849 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3209-135?

Key specifications for AS3209-135: Outside Diameter: 2.108 INCHES MINIMUM AND 2.154 INCHES MAXIMUM IN; Elongation Percentage: 125 MAXIMUM; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 1.908 INCHES MINIMUM AND 1.942 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-01-005-0508 still in active supply?

NSN 5331-01-005-0508 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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