PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS568-012O-Ring

Society of Automotive Engineers Inc · NSN 5331-01-058-4004 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-058-4004 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-058-4004. Primary manufacturer part number: AS568-012.
Features
  • O-Ring — FSC 5331
  • Temp Rating: -5.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Outside Diameter: 0.504 INCHES NOMINAL IN
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
  • Elongation Percentage: 125 MAXIMUM
  • Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Center Hole Diameter: 0.359 INCHES MINIMUM AND 0.369 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 5331-01-058-4004, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-058-4004
Primary Part NumberAS568-012
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusACTIVE
Temp Rating-5.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Outside Diameter0.504 INCHES NOMINAL IN
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
Elongation Percentage125 MAXIMUM
Test Data Document81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Center Hole Diameter0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
MaterialRUBBER FLUOROCARBON CLASS FPM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-059-8690 INTERCHANGEABLE
O-Ring
5331-00-171-7786 INTERCHANGEABLE
O-Ring
5331-00-579-649500008-447 INTERCHANGEABLE
O-Ring
Raytheon Company Dba Raytheon Co
5331-00-912-2643 INTERCHANGEABLE
O-Ring
5331-01-004-6990AS568-012-A-A-59588-2A70 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-022-5624 INTERCHANGEABLE
O-Ring
5331-01-028-08162-012N103-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-01-029-8619 INTERCHANGEABLE
O-Ring
5331-01-115-8226 INTERCHANGEABLE
O-Ring
5331-01-170-9112S8057A7 INTERCHANGEABLE
O-Ring
Honeywell International Inc. Div Aerospace - Torrance
Cross-Reference Index
Part NumberManufacturer
AS568-012 Society of Automotive Engineers Inc (USA)
AS568-012 Sae International Dba Sae International (USA)
Related Parts
5331-00-059-8690INTERCHANGEABLE
O-RING
5331-00-171-7786INTERCHANGEABLE
O-RING
5331-00-579-6495INTERCHANGEABLE
O-RING
00008-447
5331-00-912-2643INTERCHANGEABLE
O-RING
5331-01-004-6990INTERCHANGEABLE
O-RING
AS568-012-A-A-59588-2A70
5331-01-022-5624INTERCHANGEABLE
O-RING
5331-01-028-0816INTERCHANGEABLE
O-RING
2-012N103-70
5331-01-029-8619INTERCHANGEABLE
O-RING
5331-01-115-8226INTERCHANGEABLE
O-RING
5331-01-170-9112INTERCHANGEABLE
O-RING
S8057A7
5331-01-277-0369INTERCHANGEABLE
O-RING
5331-01-645-0709INTERCHANGEABLE
O-RING
AS568-012

Frequently Asked Questions

What is NSN 5331-01-058-4004?

NSN 5331-01-058-4004 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-058-4004?

NSN 5331-01-058-4004 has 2 cross-referenced part numbers: AS568-012 (Society of Automotive Engineers Inc), AS568-012 (Sae International Dba Sae International).

What NSN replaces 5331-01-058-4004?

There are 12 known substitutes for 5331-01-058-4004: 5331-00-059-8690, 5331-00-171-7786, 5331-00-579-6495 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS568-012?

Key specifications for AS568-012: Temp Rating: -5.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 0.504 INCHES NOMINAL IN; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS. 9 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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