PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3581-124O-Ring

Sae International Dba Sae International · NSN 5331-01-208-2920 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-208-2920 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-208-2920. Primary manufacturer part number: AS3581-124.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 1.225 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN
  • Outside Diameter: 1.443 INCHES NOMINAL IN
  • Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL
  • 13 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 5331-01-208-2920, 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 13 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-208-2920
Primary Part NumberAS3581-124
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusACTIVE
Center Hole Diameter1.225 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN
Outside Diameter1.443 INCHES NOMINAL IN
Temp Rating-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
MaterialRUBBER FLUOROCARBON CLASS FPM
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Hardness Rating90.0 SHORE DUROMETER A NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-00-845-9685MS28775-124 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MILR83248-124 Zf Industrieantriebe Witten Gmbh (DEU)
30803020 ITEM 28 Warren Controls, Inc. (USA)
2-214 Zf Industrieantriebe Witten Gmbh (DEU)
68946F01 Zf Industrieantriebe Witten Gmbh (DEU)
5331PL0543259 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AS3581-124 Society of Automotive Engineers Inc (USA)
231-27-1167 Zf Industrieantriebe Witten Gmbh (DEU)
AMS7259D Sae International Dba Sae International (USA)
SAE-AS3581 Sae International Dba Sae International (USA)
M83248/2-124 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-83248/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AMS7259D Society of Automotive Engineers Inc (USA)
AS3581-124 PRIMARY Sae International Dba Sae International (USA)
Related Parts
5331-00-845-9685INTERCHANGEABLE
O-RING
MS28775-124

Frequently Asked Questions

What is NSN 5331-01-208-2920?

NSN 5331-01-208-2920 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 5331-01-208-2920?

NSN 5331-01-208-2920 has 13 cross-referenced part numbers: MILR83248-124 (Zf Industrieantriebe Witten Gmbh), 30803020 ITEM 28 (Warren Controls, Inc.), 2-214 (Zf Industrieantriebe Witten Gmbh), 68946F01 (Zf Industrieantriebe Witten Gmbh), 5331PL0543259 (Jednolity Indeks Materialowy - Uniform Material Index) and 8 more.

What NSN replaces 5331-01-208-2920?

There is 1 known substitute for 5331-01-208-2920: 5331-00-845-9685. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3581-124?

Key specifications for AS3581-124: Center Hole Diameter: 1.225 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN; Outside Diameter: 1.443 INCHES NOMINAL IN; Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF; Material: RUBBER FLUOROCARBON CLASS FPM. 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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