PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS568-226O-Ring

Society of Automotive Engineers Inc · NSN 5331-00-078-7300 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-078-7300 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-078-7300. Primary manufacturer part number: AS568-226.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 1.966 INCHES MINIMUM AND 2.002 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Outside Diameter: 2.262 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.139 INCHES NOMINAL IN
  • 7 verified cross-references
  • Primary manufacturer: Society of Automotive Engineers Inc
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 5331-00-078-7300, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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
NSN5331-00-078-7300
Primary Part NumberAS568-226
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusACTIVE
Center Hole Diameter1.966 INCHES MINIMUM AND 2.002 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Outside Diameter2.262 INCHES NOMINAL IN
Cross-Sectional Height0.139 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-042-9745 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5331-00-180-9122 INTERCHANGEABLE
O-Ring
2825-00-218-60222817 INTERCHANGEABLE
Baffle,oil
Northrop Grumman Systems Corporation Div Marine Systems
4730-00-260-8284A-4544 INTERCHANGEABLE
Cap,tube
Mueller Brass Co.
3120-00-354-84692817 INTERCHANGEABLE
Bearing Half,sleeve
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5920-00-548-32442817 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
5331-00-576-97322615-226 INTERCHANGEABLE
O-Ring
Fluid Conditioning Products, Inc.
5331-00-717-3981 INTERCHANGEABLE
O-Ring
2520-00-866-5230 INTERCHANGEABLE
Parts Kit,cylinder
6645-01-089-55222817 INTERCHANGEABLE
Stopwatch
Wakmann Watch Company Inc
Cross-Reference Index
Part NumberManufacturer
AS568-226 Society of Automotive Engineers Inc (USA)
5592-PC Zf Industrieantriebe Witten Gmbh (DEU)
2817-00 Lawler Manufacturing Company, Inc. (USA)
863DPC37 Lawler Manufacturing Company, Inc. (USA)
864DPC37 Lawler Manufacturing Company, Inc. (USA)
2817 Lawler Manufacturing Company, Inc. (USA)
AS568-226 Sae International Dba Sae International (USA)
Related Parts
5905-00-042-9745INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5331-00-180-9122INTERCHANGEABLE
O-RING
2825-00-218-6022INTERCHANGEABLE
BAFFLE,OIL
2817
4730-00-260-8284INTERCHANGEABLE
CAP,TUBE
A-4544
3120-00-354-8469INTERCHANGEABLE
BEARING HALF,SLEEVE
2817
5920-00-548-3244INTERCHANGEABLE
FUSEHOLDER,BLOCK
2817
5331-00-576-9732INTERCHANGEABLE
O-RING
2615-226
5331-00-717-3981INTERCHANGEABLE
O-RING
2520-00-866-5230INTERCHANGEABLE
PARTS KIT,CYLINDER
6645-01-089-5522INTERCHANGEABLE
STOPWATCH
2817
5950-01-144-5928INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
2817
4820-01-197-7951INTERCHANGEABLE
ROLLER,VALVE
2817

Frequently Asked Questions

What is NSN 5331-00-078-7300?

NSN 5331-00-078-7300 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 5331-00-078-7300?

NSN 5331-00-078-7300 has 7 cross-referenced part numbers: AS568-226 (Society of Automotive Engineers Inc), 5592-PC (Zf Industrieantriebe Witten Gmbh), 2817-00 (Lawler Manufacturing Company, Inc.), 863DPC37 (Lawler Manufacturing Company, Inc.), 864DPC37 (Lawler Manufacturing Company, Inc.) and 2 more.

What NSN replaces 5331-00-078-7300?

There are 12 known substitutes for 5331-00-078-7300: 5905-00-042-9745, 5331-00-180-9122, 2825-00-218-6022 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS568-226?

Key specifications for AS568-226: Center Hole Diameter: 1.966 INCHES MINIMUM AND 2.002 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Outside Diameter: 2.262 INCHES NOMINAL IN; Cross-Sectional Height: 0.139 INCHES NOMINAL IN. 4 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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