PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AMS 7270KO-Ring

Society of Automotive Engineers Inc · NSN 5331-01-070-4836 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-070-4836 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-070-4836. Primary manufacturer part number: AMS 7270K.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Outside Diameter: 0.566 INCHES NOMINAL IN
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM 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 5331-01-070-4836, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 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
NSN5331-01-070-4836
Primary Part NumberAMS 7270K
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusACTIVE
Center Hole Diameter0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Outside Diameter0.566 INCHES NOMINAL IN
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-047-386232-01053-45 INTERCHANGEABLE
O-Ring
Grimes Aerospace Company
5331-00-166-0975AS3209-011 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-166-1085AS3581-013 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-291-73475066D36 INTERCHANGEABLE
O-Ring
Curtiss-Wright Controls, Inc. Div Actuation Division
5331-00-405-89564400171-0130 INTERCHANGEABLE
O-Ring
Marotta Controls Inc
5331-00-435-52742-13E515-8 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-00-686-2352AS3569-06 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-825-9211 INTERCHANGEABLE
O-Ring
5331-01-070-4835PRP568-010-4200-70 INTERCHANGEABLE
O-Ring
Parco, Llc
5331-01-109-6071 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
AMS 7270K Society of Automotive Engineers Inc (USA)
AS568-013AMS727 0F Zf Industrieantriebe Witten Gmbh (DEU)
5331PL1394074 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AMS 7270K Sae International Dba Sae International (USA)
ARP 568-013 B10 Zf Industrieantriebe Witten Gmbh (DEU)
PRP568-013-4200-70 Parco, Llc (USA)
AS568-013 Society of Automotive Engineers Inc (USA)
Related Parts
5331-00-047-3862INTERCHANGEABLE
O-RING
32-01053-45
5331-00-166-0975INTERCHANGEABLE
O-RING
AS3209-011
5331-00-166-1085INTERCHANGEABLE
O-RING
AS3581-013
5331-00-291-7347INTERCHANGEABLE
O-RING
5066D36
5331-00-405-8956INTERCHANGEABLE
O-RING
4400171-0130
5331-00-435-5274INTERCHANGEABLE
O-RING
2-13E515-8
5331-00-686-2352INTERCHANGEABLE
O-RING
AS3569-06
5331-00-825-9211INTERCHANGEABLE
O-RING
5331-01-070-4835INTERCHANGEABLE
O-RING
PRP568-010-4200-70
5331-01-109-6071INTERCHANGEABLE
O-RING
5331-01-283-9224INTERCHANGEABLE
O-RING
5330-01-349-6511INTERCHANGEABLE
PACKING,PREFORMED

Frequently Asked Questions

What is NSN 5331-01-070-4836?

NSN 5331-01-070-4836 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 5331-01-070-4836?

NSN 5331-01-070-4836 has 7 cross-referenced part numbers: AMS 7270K (Society of Automotive Engineers Inc), AS568-013AMS727 0F (Zf Industrieantriebe Witten Gmbh), 5331PL1394074 (Jednolity Indeks Materialowy - Uniform Material Index), AMS 7270K (Sae International Dba Sae International), ARP 568-013 B10 (Zf Industrieantriebe Witten Gmbh) and 2 more.

What NSN replaces 5331-01-070-4836?

There are 12 known substitutes for 5331-01-070-4836: 5331-00-047-3862, 5331-00-166-0975, 5331-00-166-1085 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AMS 7270K?

Key specifications for AMS 7270K: Center Hole Diameter: 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Outside Diameter: 0.566 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL. 5 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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