PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3581-280O-Ring

Sae International Dba Sae International · NSN 5331-01-083-6504 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-083-6504 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-083-6504. Primary manufacturer part number: AS3581-280.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Elongation Percentage: 125 MAXIMUM
  • Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL
  • Center Hole Diameter: 13.919 INCHES MINIMUM AND 14.049 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Outside Diameter: 14.262 INCHES NOMINAL IN
  • 6 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 5331-01-083-6504, 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 6 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
NSN5331-01-083-6504
Primary Part NumberAS3581-280
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusACTIVE
MaterialRUBBER FLUOROCARBON CLASS FPM
Elongation Percentage125 MAXIMUM
Hardness Rating90.0 SHORE DUROMETER A NOMINAL
Center Hole Diameter13.919 INCHES MINIMUM AND 14.049 INCHES MAXIMUM IN
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Outside Diameter14.262 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-01-194-8963AS3581-140 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-606-7326M83248/2-908 INTERCHANGEABLE
O-Ring
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
SAE AS3581-280 Sae International Dba Sae International (USA)
SAE-AS3581 Sae International Dba Sae International (USA)
AS3581-280 PRIMARY Sae International Dba Sae International (USA)
MIL-R-83248/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M83248/2-280 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ASM 7259 Sae International Dba Sae International (USA)
Related Parts
5331-01-194-8963INTERCHANGEABLE
O-RING
AS3581-140
5331-01-606-7326INTERCHANGEABLE
O-RING
M83248/2-908

Frequently Asked Questions

What is NSN 5331-01-083-6504?

NSN 5331-01-083-6504 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 5331-01-083-6504?

NSN 5331-01-083-6504 has 6 cross-referenced part numbers: SAE AS3581-280 (Sae International Dba Sae International), SAE-AS3581 (Sae International Dba Sae International), AS3581-280 (Sae International Dba Sae International), MIL-R-83248/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M83248/2-280 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5331-01-083-6504?

There are 2 known substitutes for 5331-01-083-6504: 5331-01-194-8963, 5331-01-606-7326. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3581-280?

Key specifications for AS3581-280: Material: RUBBER FLUOROCARBON CLASS FPM; Elongation Percentage: 125 MAXIMUM; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 13.919 INCHES MINIMUM AND 14.049 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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