PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS568-475O-Ring

Society of Automotive Engineers Inc · NSN 5331-00-135-5098 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-135-5098 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-135-5098. Primary manufacturer part number: AS568-475.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Hardness Rating: 88.0 SHORE DUROMETER A NOMINAL
  • Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
  • Outside Diameter: 26.490 INCHES NOMINAL IN
  • Center Hole Diameter: 25.880 INCHES MINIMUM AND 26.000 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
  • 6 verified cross-references
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 5331-00-135-5098, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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
NSN5331-00-135-5098
Primary Part NumberAS568-475
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Hardness Rating88.0 SHORE DUROMETER A NOMINAL
Temp Rating-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
Outside Diameter26.490 INCHES NOMINAL IN
Center Hole Diameter25.880 INCHES MINIMUM AND 26.000 INCHES MAXIMUM IN
Cross-Sectional Height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-054-6935 INTERCHANGEABLE
O-Ring
5331-00-054-6937AMS-P-5516 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-060-4325239-003-0147 INTERCHANGEABLE
O-Ring
Northrop Grumman Systems Corporation
5331-00-104-7620 INTERCHANGEABLE
O-Ring
5331-00-107-6223 INTERCHANGEABLE
O-Ring
5331-00-107-7445 INTERCHANGEABLE
O-Ring
5331-00-194-3705AN6227A29 INTERCHANGEABLE
O-Ring
Hydro-Aire Aerospace Corp
5330-00-260-9649 INTERCHANGEABLE
Packing,preformed
5331-00-419-0354 INTERCHANGEABLE
O-Ring
5331-00-579-8108124A745 INTERCHANGEABLE
O-Ring
Meggitt Troy Inc
Cross-Reference Index
Part NumberManufacturer
AS568-475 Society of Automotive Engineers Inc (USA)
AMS-P-5516 Society of Automotive Engineers Inc (USA)
MIL-P-5516CLB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AMS-P-5516 Sae International Dba Sae International (USA)
ARP568-475MILP5516CLASSB Society of Automotive Engineers Inc (USA)
AS568-475 Sae International Dba Sae International (USA)
Related Parts
5331-00-054-6935INTERCHANGEABLE
O-RING
5331-00-054-6937INTERCHANGEABLE
O-RING
AMS-P-5516
5331-00-060-4325INTERCHANGEABLE
O-RING
239-003-0147
5331-00-104-7620INTERCHANGEABLE
O-RING
5331-00-107-6223INTERCHANGEABLE
O-RING
5331-00-107-7445INTERCHANGEABLE
O-RING
5331-00-194-3705INTERCHANGEABLE
O-RING
AN6227A29
5330-00-260-9649INTERCHANGEABLE
PACKING,PREFORMED
5331-00-419-0354INTERCHANGEABLE
O-RING
5331-00-579-8108INTERCHANGEABLE
O-RING
124A745
5331-00-592-3406INTERCHANGEABLE
O-RING
A395X8
5331-00-599-0629INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-00-135-5098?

NSN 5331-00-135-5098 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 5331-00-135-5098?

NSN 5331-00-135-5098 has 6 cross-referenced part numbers: AS568-475 (Society of Automotive Engineers Inc), AMS-P-5516 (Society of Automotive Engineers Inc), MIL-P-5516CLB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AMS-P-5516 (Sae International Dba Sae International), ARP568-475MILP5516CLASSB (Society of Automotive Engineers Inc) and 1 more.

What NSN replaces 5331-00-135-5098?

There are 12 known substitutes for 5331-00-135-5098: 5331-00-054-6935, 5331-00-054-6937, 5331-00-060-4325 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS568-475?

Key specifications for AS568-475: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 88.0 SHORE DUROMETER A NOMINAL; Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Outside Diameter: 26.490 INCHES NOMINAL IN. 6 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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