PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS568-126O-Ring

Society of Automotive Engineers Inc · NSN 5331-00-291-4854 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-291-4854 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-291-4854. Primary manufacturer part number: AS568-126.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Center Hole Diameter: 1.353 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN
  • Outside Diameter: 1.568 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • 4 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 5331-00-291-4854, 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 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-291-4854
Primary Part NumberAS568-126
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Center Hole Diameter1.353 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN
Outside Diameter1.568 INCHES NOMINAL IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5331-00-248-9344 INTERCHANGEABLE
O-Ring
5331-00-543-3106 INTERCHANGEABLE
O-Ring
5331-00-558-19015130-534049-4 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div Aerospace Group Headquarters
1560-00-695-174430-2537 INTERCHANGEABLE
Cushion,chin,operator
The Boeing Company Div Defense
9320-01-050-5236 INTERCHANGEABLE
Rubber Sheet,solid
5331-01-098-3171 INTERCHANGEABLE
O-Ring
5331-01-105-18852-240N525-60 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-01-105-1887 INTERCHANGEABLE
O-Ring
5331-01-385-5591AS568-223 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-441-57382-157N525-60 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
Cross-Reference Index
Part NumberManufacturer
AS568-126 Society of Automotive Engineers Inc (USA)
AMS3212 Society of Automotive Engineers Inc (USA)
302537 Brp Us Inc (USA)
AS568-126 Sae International Dba Sae International (USA)
Related Parts
5331-00-248-9344INTERCHANGEABLE
O-RING
5331-00-543-3106INTERCHANGEABLE
O-RING
5331-00-558-1901INTERCHANGEABLE
O-RING
5130-534049-4
1560-00-695-1744INTERCHANGEABLE
CUSHION,CHIN,OPERATOR
30-2537
9320-01-050-5236INTERCHANGEABLE
RUBBER SHEET,SOLID
5331-01-098-3171INTERCHANGEABLE
O-RING
5331-01-105-1885INTERCHANGEABLE
O-RING
2-240N525-60
5331-01-105-1887INTERCHANGEABLE
O-RING
5331-01-385-5591INTERCHANGEABLE
O-RING
AS568-223
5331-01-441-5738INTERCHANGEABLE
O-RING
2-157N525-60
9320-01-496-0748INTERCHANGEABLE
RUBBER SHEET,SOLID
AMS3212-0-063X36X36

Frequently Asked Questions

What is NSN 5331-00-291-4854?

NSN 5331-00-291-4854 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-291-4854?

NSN 5331-00-291-4854 has 4 cross-referenced part numbers: AS568-126 (Society of Automotive Engineers Inc), AMS3212 (Society of Automotive Engineers Inc), 302537 (Brp Us Inc), AS568-126 (Sae International Dba Sae International).

What NSN replaces 5331-00-291-4854?

There are 11 known substitutes for 5331-00-291-4854: 5331-00-248-9344, 5331-00-543-3106, 5331-00-558-1901 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS568-126?

Key specifications for AS568-126: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Center Hole Diameter: 1.353 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN; Outside Diameter: 1.568 INCHES NOMINAL IN; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-291-4854 still in active supply?

NSN 5331-00-291-4854 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.
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