PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AMS7271HO-Ring

Sae International Dba Sae International · NSN 5331-00-882-7337 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-882-7337 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-882-7337. Primary manufacturer part number: AMS7271H.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU
  • Hardness Rating: 65.0 SHORE DUROMETER A NOMINAL
  • Outside Diameter: 1.379 INCHES NOMINAL IN
  • Center Hole Diameter: 1.229 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN
  • Temp Rating: -70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • 8 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr or Rubber Polyester Urethane Class Au or Rubber Polyether Urethane Class Eu construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-882-7337, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN5331-00-882-7337
Primary Part NumberAMS7271H
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU
Hardness Rating65.0 SHORE DUROMETER A NOMINAL
Outside Diameter1.379 INCHES NOMINAL IN
Center Hole Diameter1.229 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN
Temp Rating-70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5331-00-542-1981AS3578-275 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-579-6518 INTERCHANGEABLE
O-Ring
5331-00-684-2286AS3578-254 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-015-3371AS568-020 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-364-9382AS568-026 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-669-9617 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
AMS7271H Sae International Dba Sae International (USA)
AMS7271H Society of Automotive Engineers Inc (USA)
2-26N506-65 Parker-Hannifin Corp Div O-Ring Division (USA)
AS568-026 Sae International Dba Sae International (USA)
AS568-026 Society of Automotive Engineers Inc (USA)
AS568-026/AMS7271 American Society for Testing and Materials Dba Astm International (USA)
MILR15624-026ES Eriks B.v. (NLD)
9073691-10 Us Army Aviation and Missile Command (USA)
Related Parts
5331-00-542-1981INTERCHANGEABLE
O-RING
AS3578-275
5331-00-579-6518INTERCHANGEABLE
O-RING
5331-00-684-2286INTERCHANGEABLE
O-RING
AS3578-254
5331-01-015-3371INTERCHANGEABLE
O-RING
AS568-020
5331-01-364-9382INTERCHANGEABLE
O-RING
AS568-026
5331-01-669-9617INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-00-882-7337?

NSN 5331-00-882-7337 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-882-7337?

NSN 5331-00-882-7337 has 8 cross-referenced part numbers: AMS7271H (Sae International Dba Sae International), AMS7271H (Society of Automotive Engineers Inc), 2-26N506-65 (Parker-Hannifin Corp Div O-Ring Division), AS568-026 (Sae International Dba Sae International), AS568-026 (Society of Automotive Engineers Inc) and 3 more.

What NSN replaces 5331-00-882-7337?

There are 6 known substitutes for 5331-00-882-7337: 5331-00-542-1981, 5331-00-579-6518, 5331-00-684-2286 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AMS7271H?

Key specifications for AMS7271H: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU; Hardness Rating: 65.0 SHORE DUROMETER A NOMINAL; Outside Diameter: 1.379 INCHES NOMINAL IN; Center Hole Diameter: 1.229 INCHES MINIMUM AND 1.249 INCHES MAXIMUM 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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