PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS568-223O-Ring

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5331-01-626-1922 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-626-1922 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-626-1922. Primary manufacturer part number: AS568-223.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 1.609 INCHES NOMINAL IN
  • Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM
  • 2 verified cross-references
  • Primary manufacturer: National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Ethylene-Propylene Class Epm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-626-1922, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 2 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-626-1922
Primary Part NumberAS568-223
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Center Hole Diameter1.609 INCHES NOMINAL IN
MaterialRUBBER ETHYLENE-PROPYLENE CLASS EPM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5331-00-920-8523AS568C-223 INTERCHANGEABLE
O-Ring
American Society for Testing and Materials Dba Astm International
5331-00-931-3014 INTERCHANGEABLE
O-Ring
5331-01-222-9114AS568-223E59-80 INTERCHANGEABLE
O-Ring
Federal-Mogul Corp Government Sales Dept
5331-01-385-5591AS568-223 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5360-01-522-172314918-151-000 INTERCHANGEABLE
Spring,helical,compression
Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Curtiss-Wright / Nu-Torque
5331-01-734-3237515-8843163-F120 INTERCHANGEABLE
O-Ring
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
2-223E0740-75 Parker-Hannifin Corp Div O-Ring Division (USA)
AS568-223 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5331-00-920-8523INTERCHANGEABLE
O-RING
AS568C-223
5331-00-931-3014INTERCHANGEABLE
O-RING
5331-01-222-9114INTERCHANGEABLE
O-RING
AS568-223E59-80
5331-01-385-5591INTERCHANGEABLE
O-RING
AS568-223
5360-01-522-1723INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
14918-151-000
5331-01-734-3237INTERCHANGEABLE
O-RING
515-8843163-F120

Frequently Asked Questions

What is NSN 5331-01-626-1922?

NSN 5331-01-626-1922 is a O-Ring, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-626-1922?

NSN 5331-01-626-1922 has 2 cross-referenced part numbers: 2-223E0740-75 (Parker-Hannifin Corp Div O-Ring Division), AS568-223 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5331-01-626-1922?

There are 6 known substitutes for 5331-01-626-1922: 5331-00-920-8523, 5331-00-931-3014, 5331-01-222-9114 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS568-223?

Key specifications for AS568-223: Center Hole Diameter: 1.609 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: O-RING; Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM. 3 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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