PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3578-018O-Ring

Sae International Dba Sae International · NSN 5331-00-690-9743 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-690-9743 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-690-9743. Primary manufacturer part number: AS3578-018.
Features
  • O-Ring — FSC 5331
  • Hardness Rating: 65.0 SHORE DUROMETER A NOMINAL
  • Outside Diameter: 0.864 INCHES MINIMUM AND 0.894 INCHES MAXIMUM IN
  • Center Hole Diameter: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 14 verified cross-references
  • Primary manufacturer: Sae International Dba Sae International
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 5331-00-690-9743, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-690-9743
Primary Part NumberAS3578-018
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Hardness Rating65.0 SHORE DUROMETER A NOMINAL
Outside Diameter0.864 INCHES MINIMUM AND 0.894 INCHES MAXIMUM IN
Center Hole Diameter0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5365-01-331-717418248-1 INTERCHANGEABLE
Spacer,sleeve
Hexco International Dba Acd
5331-01-388-3989 INTERCHANGEABLE
O-Ring
5331-01-449-3352AMS 7271/AS3578-018 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
PRP568-018-4024-65 Parco, Llc (USA)
AS3578-018 PRIMARY Sae International Dba Sae International (USA)
5331PL1057367 Jednolity Indeks Materialowy - Uniform Material Index (POL)
200-0844-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
AS3578-018 Society of Automotive Engineers Inc (USA)
MS9021-018 Bae Systems Land & Armaments L.p. (USA)
AS3578-018 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
SAE-AS3578 Sae International Dba Sae International (USA)
MS9021-018 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
182481 Woodward, Inc. Div Fuel Systems and Controls (USA)
2-018 N506-65 Parker-Hannifin Corp Div O-Ring Division (USA)
30-96501-0104 Mtu Aero Engines Ag (DEU)
MS9021-018ES Eriks B.v. (NLD)
2-018 N506-65 Parker Hannifin Gmbh O-Ring Division (DEU)
Related Parts
5365-01-331-7174INTERCHANGEABLE
SPACER,SLEEVE
18248-1
5331-01-388-3989INTERCHANGEABLE
O-RING
5331-01-449-3352INTERCHANGEABLE
O-RING
AMS 7271/AS3578-018

Frequently Asked Questions

What is NSN 5331-00-690-9743?

NSN 5331-00-690-9743 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 5331-00-690-9743?

NSN 5331-00-690-9743 has 14 cross-referenced part numbers: PRP568-018-4024-65 (Parco, Llc), AS3578-018 (Sae International Dba Sae International), 5331PL1057367 (Jednolity Indeks Materialowy - Uniform Material Index), 200-0844-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), AS3578-018 (Society of Automotive Engineers Inc) and 9 more.

What NSN replaces 5331-00-690-9743?

There are 3 known substitutes for 5331-00-690-9743: 5365-01-331-7174, 5331-01-388-3989, 5331-01-449-3352. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3578-018?

Key specifications for AS3578-018: Hardness Rating: 65.0 SHORE DUROMETER A NOMINAL; Outside Diameter: 0.864 INCHES MINIMUM AND 0.894 INCHES MAXIMUM IN; Center Hole Diameter: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-690-9743 still in active supply?

NSN 5331-00-690-9743 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.
PartsTable Design LLC · partstable.com