PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3581-920O-Ring

Sae International Dba Sae International · NSN 5331-01-024-2512 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-024-2512 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-024-2512. Primary manufacturer part number: AS3581-920.
Features
  • O-Ring — FSC 5331
  • Hardness Rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
  • Outside Diameter: 1.689 INCHES MINIMUM AND 1.733 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-R-83248 TYPE 1, CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Center Hole Diameter: 1.461 INCHES MINIMUM AND 1.489 INCHES MAXIMUM IN
  • 49 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 5331-01-024-2512, 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 49 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-01-024-2512
Primary Part NumberAS3581-920
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Hardness Rating85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
Outside Diameter1.689 INCHES MINIMUM AND 1.733 INCHES MAXIMUM IN
Cross-Sectional Height0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
Material Document and ClassificationMIL-R-83248 TYPE 1, CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialRUBBER FLUOROCARBON CLASS FPM
Center Hole Diameter1.461 INCHES MINIMUM AND 1.489 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5331-00-182-31923-920N168-80 INTERCHANGEABLE
O-Ring
Lockheed Martin Corp
5331-00-226-2995 INTERCHANGEABLE
O-Ring
5331-00-816-354610596841-13 INTERCHANGEABLE
O-Ring
Us Army Aviation and Missile Command
5331-01-306-60433-20N-9 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
5330-01-331-8138 INTERCHANGEABLE
Packing,preformed
5330-01-364-5825R-8-29-21 INTERCHANGEABLE
Packing,preformed
Todd Combustion Inc
5331-01-388-04323-920N552-90 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-01-593-5783 INTERCHANGEABLE
O-Ring
5331-01-647-5713 INTERCHANGEABLE
O-Ring
5331-01-683-8280 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
AMS7259 Sae International Dba Sae International (USA)
3-920-V894-90 Zf Industrieantriebe Witten Gmbh (DEU)
D-42060 PC30 Todd Combustion Inc (USA)
15095-41525 ITEM 19 Moog Inc. Dba Ampac-Isp Corp (USA)
AS3581-920 Society of Automotive Engineers Inc (USA)
3-920N507-9 Zf Industrieantriebe Witten Gmbh (DEU)
83248/2-920 Zf Industrieantriebe Witten Gmbh (DEU)
PB4208413 Zf Industrieantriebe Witten Gmbh (DEU)
AS3581-920 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
PD49600-4 Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control (USA)
16702632 Zf Industrieantriebe Witten Gmbh (DEU)
MIL-R-83248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10117142 Nimikkeistokeskus Ncb Finland (FIN)
M83248/2-920 Sae International Dba Sae International (USA)
AS3581-920 PRIMARY Sae International Dba Sae International (USA)
5331PL1996474 Jednolity Indeks Materialowy - Uniform Material Index (POL)
15099-41550 ITEM 26 Moog Inc. Dba Ampac-Isp Corp (USA)
AS3581-920 Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
PD49600-11 Zf Industrieantriebe Witten Gmbh (DEU)
PD49599-17 Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control (USA)
Related Parts
5331-00-182-3192INTERCHANGEABLE
O-RING
3-920N168-80
5331-00-226-2995INTERCHANGEABLE
O-RING
5331-00-816-3546INTERCHANGEABLE
O-RING
10596841-13
5331-01-306-6043INTERCHANGEABLE
O-RING
3-20N-9
5330-01-331-8138INTERCHANGEABLE
PACKING,PREFORMED
5330-01-364-5825INTERCHANGEABLE
PACKING,PREFORMED
R-8-29-21
5331-01-388-0432INTERCHANGEABLE
O-RING
3-920N552-90
5331-01-593-5783INTERCHANGEABLE
O-RING
5331-01-647-5713INTERCHANGEABLE
O-RING
5331-01-683-8280INTERCHANGEABLE
O-RING
1680-01-705-4749INTERCHANGEABLE
SWAY BRACE ASSEMBLY
301726-1

Frequently Asked Questions

What is NSN 5331-01-024-2512?

NSN 5331-01-024-2512 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 5331-01-024-2512?

NSN 5331-01-024-2512 has 49 cross-referenced part numbers: AMS7259 (Sae International Dba Sae International), 3-920-V894-90 (Zf Industrieantriebe Witten Gmbh), D-42060 PC30 (Todd Combustion Inc), 15095-41525 ITEM 19 (Moog Inc. Dba Ampac-Isp Corp), AS3581-920 (Society of Automotive Engineers Inc) and 44 more.

What NSN replaces 5331-01-024-2512?

There are 11 known substitutes for 5331-01-024-2512: 5331-00-182-3192, 5331-00-226-2995, 5331-00-816-3546 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3581-920?

Key specifications for AS3581-920: Hardness Rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM; Outside Diameter: 1.689 INCHES MINIMUM AND 1.733 INCHES MAXIMUM IN; Cross-Sectional Height: 0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN; Material Document and Classification: MIL-R-83248 TYPE 1, CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-01-024-2512 still in active supply?

NSN 5331-01-024-2512 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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