PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS568C-223O-Ring

American Society for Testing and Materials Dba Astm International · NSN 5331-00-920-8523 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-920-8523 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-920-8523. Primary manufacturer part number: AS568C-223.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 1.864 INCHES MINIMUM AND 1.910 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Temp Rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Elongation Percentage: 160 MAXIMUM
  • Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL
  • Center Hole Diameter: 1.594 INCHES MINIMUM AND 1.624 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 5331-00-920-8523, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is American Society for Testing and Materials Dba Astm International. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 7 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
NSN5331-00-920-8523
Primary Part NumberAS568C-223
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Outside Diameter1.864 INCHES MINIMUM AND 1.910 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Temp Rating-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Elongation Percentage160 MAXIMUM
Hardness Rating90.0 SHORE DUROMETER A NOMINAL
Center Hole Diameter1.594 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
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
5331-01-626-1922AS568-223 INTERCHANGEABLE
O-Ring
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5331-01-734-3237515-8843163-F120 INTERCHANGEABLE
O-Ring
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
AS568C-223 PRIMARY American Society for Testing and Materials Dba Astm International (USA)
2-223 N552-90 Parker Hannifin Gmbh O-Ring Division (DEU)
ASTM D2000-01-M3CH910B34E016E036 American Society for Testing and Materials Dba Astm International (USA)
AS568-223 American Society for Testing and Materials Dba Astm International (USA)
200113AVPC101 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
2-223N552-90 Parker Hannifin France Holding (FRA)
2-223 N183-9 Parker-Hannifin Corp Div O-Ring Division (USA)
6080B Siemens Energy, Inc. Dba Dresser-Rand (USA)
200113AVPC101 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
200113AVPC101 Siemens Energy, Inc. Dba Dresser-Rand (USA)
2-223N552-90 Parker-Hannifin Corp Div O-Ring Division (USA)
6080B Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
2-223-90DUR0METER Parker-Hannifin Corp Div O-Ring Division (USA)
Related Parts
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
5331-01-626-1922INTERCHANGEABLE
O-RING
AS568-223
5331-01-734-3237INTERCHANGEABLE
O-RING
515-8843163-F120

Frequently Asked Questions

What is NSN 5331-00-920-8523?

NSN 5331-00-920-8523 is a O-Ring, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-920-8523?

NSN 5331-00-920-8523 has 13 cross-referenced part numbers: AS568C-223 (American Society for Testing and Materials Dba Astm International), 2-223 N552-90 (Parker Hannifin Gmbh O-Ring Division), ASTM D2000-01-M3CH910B34E016E036 (American Society for Testing and Materials Dba Astm International), AS568-223 (American Society for Testing and Materials Dba Astm International), 200113AVPC101 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 8 more.

What NSN replaces 5331-00-920-8523?

There are 6 known substitutes for 5331-00-920-8523: 5331-00-931-3014, 5331-01-222-9114, 5331-01-385-5591 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS568C-223?

Key specifications for AS568C-223: Outside Diameter: 1.864 INCHES MINIMUM AND 1.910 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Temp Rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com