PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3578-168O-Ring

Sae International Dba Sae International · NSN 5331-00-912-5066 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-912-5066 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-912-5066. Primary manufacturer part number: AS3578-168.
Features
  • O-Ring — FSC 5331
  • Temp Rating: -70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
  • Material Document and Classification: AMS-7271 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
  • Center Hole Diameter: 7.207 INCHES MINIMUM AND 7.267 INCHES MAXIMUM IN
  • Outside Diameter: 7.392 INCHES MINIMUM AND 7.494 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-912-5066, 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 6 commercial cross-references from 5 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
NSN5331-00-912-5066
Primary Part NumberAS3578-168
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusACTIVE
Temp Rating-70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
Material Document and ClassificationAMS-7271 ASSN STD SINGLE MATERIAL RESPONSE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Hardness Rating60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
Center Hole Diameter7.207 INCHES MINIMUM AND 7.267 INCHES MAXIMUM IN
Outside Diameter7.392 INCHES MINIMUM AND 7.494 INCHES MAXIMUM IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-00-404-45812-168 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
Cross-Reference Index
Part NumberManufacturer
PRP568-168-4024-25 Parco, Llc (USA)
AS3578-168 Society of Automotive Engineers Inc (USA)
AS3578-168 PRIMARY Sae International Dba Sae International (USA)
MS9021-168 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
2-168 N506-65 Parker-Hannifin Corp Div O-Ring Division (USA)
SAE-AS3578 Sae International Dba Sae International (USA)
Related Parts
5331-00-404-4581INTERCHANGEABLE
O-RING
2-168

Frequently Asked Questions

What is NSN 5331-00-912-5066?

NSN 5331-00-912-5066 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 5331-00-912-5066?

NSN 5331-00-912-5066 has 6 cross-referenced part numbers: PRP568-168-4024-25 (Parco, Llc), AS3578-168 (Society of Automotive Engineers Inc), AS3578-168 (Sae International Dba Sae International), MS9021-168 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 2-168 N506-65 (Parker-Hannifin Corp Div O-Ring Division) and 1 more.

What NSN replaces 5331-00-912-5066?

There is 1 known substitute for 5331-00-912-5066: 5331-00-404-4581. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3578-168?

Key specifications for AS3578-168: Temp Rating: -70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF; Material Document and Classification: AMS-7271 ASSN STD SINGLE MATERIAL RESPONSE; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM. 7 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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