PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3208-04O-Ring

Sae International Dba Sae International · NSN 5331-00-103-1986 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-103-1986 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-103-1986. Primary manufacturer part number: AS3208-04.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
  • Elongation Percentage: 125 MAXIMUM
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Outside Diameter: 0.495 INCHES NOMINAL IN
  • Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
  • Center Hole Diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
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 5331-00-103-1986, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-103-1986
Primary Part NumberAS3208-04
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Cross-Sectional Height0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
Elongation Percentage125 MAXIMUM
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
MaterialRUBBER FLUOROCARBON CLASS FPM
Outside Diameter0.495 INCHES NOMINAL IN
Temp Rating-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
Center Hole Diameter0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5331-00-020-02032000195 INTERCHANGEABLE
O-Ring
General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp
5331-01-016-75500001.0038.R INTERCHANGEABLE
O-Ring
Cameron Energy Services Corp.
5331-01-026-3795 INTERCHANGEABLE
O-Ring
5331-01-463-8901AS3208-04 INTERCHANGEABLE
Packing,preformed,a
Rolls Royce Corp
Cross-Reference Index
Part NumberManufacturer
AS3208-04 Lockheed Martin Services, Llc (USA)
AS3208-04 PRIMARY Sae International Dba Sae International (USA)
Z00.N7423510020 Daher Aerospace - Ex Socata (FRA)
5331001031986 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
ST3002-04 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
9469127904 Pilatus Aircraft Ltd (CHE)
10369163 Nimikkeistokeskus Ncb Finland (FIN)
AS3208-04 Leonardo Spa Helicopters Division - Production Site (ITA)
AS3208-04 Fincantieri S.p.a. Div Direzione Navi Militari (ITA)
NAS1595-4 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
M83248/1-904 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5331010167550 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
AS3208-04 Lockheed Martin Aeronautical Systems Support Company Dba Lmassc (USA)
AS3208-04 Society of Automotive Engineers Inc (USA)
MILR83248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AS3208-04 Ge Avio Srl (ITA)
5331PL0952779 Jednolity Indeks Materialowy - Uniform Material Index (POL)
SAE-AMS7276 Sae International Dba Sae International (USA)
Related Parts
5331-00-020-0203INTERCHANGEABLE
O-RING
2000195
5331-01-016-7550INTERCHANGEABLE
O-RING
0001.0038.R
5331-01-026-3795INTERCHANGEABLE
O-RING
5331-01-463-8901INTERCHANGEABLE
PACKING,PREFORMED,A
AS3208-04

Frequently Asked Questions

What is NSN 5331-00-103-1986?

NSN 5331-00-103-1986 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 5331-00-103-1986?

NSN 5331-00-103-1986 has 18 cross-referenced part numbers: AS3208-04 (Lockheed Martin Services, Llc), AS3208-04 (Sae International Dba Sae International), Z00.N7423510020 (Daher Aerospace - Ex Socata), 5331001031986 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), ST3002-04 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.) and 13 more.

What NSN replaces 5331-00-103-1986?

There are 4 known substitutes for 5331-00-103-1986: 5331-00-020-0203, 5331-01-016-7550, 5331-01-026-3795 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3208-04?

Key specifications for AS3208-04: Cross-Sectional Height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; End Item Identification: MRAP - COUGAR CAT1 A1; MRAP - COUGAR CAT1 A2; MRAP - COUGAR CAT2 A1; MRAP - COUGAR CAT2 A2; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS); Elongation Percentage: 125 MAXIMUM; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-103-1986 still in active supply?

NSN 5331-00-103-1986 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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