PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3085-020O-Ring

Allison Transmission Inc Dba Allison Transmission, Inc · NSN 5331-01-290-4180 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-290-4180 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-290-4180. Primary manufacturer part number: AS3085-020.
Features
  • O-Ring — FSC 5331
  • Material Document and Classification: AMS7280 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Center Hole Diameter: 0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Allison Transmission Inc Dba Allison Transmission, Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-290-4180, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-290-4180
Primary Part NumberAS3085-020
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAllison Transmission Inc Dba Allison Transmission, Inc
StatusACTIVE
Material Document and ClassificationAMS7280 ASSN STD SINGLE MATERIAL RESPONSE
MaterialRUBBER FLUOROCARBON CLASS FPM
Center Hole Diameter0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-01-279-3361 INTERCHANGEABLE
O-Ring
5330-01-463-8826AS3085-020 INTERCHANGEABLE
Packing,preformed,a
Rolls Royce Corp
Cross-Reference Index
Part NumberManufacturer
10412209 Nimikkeistokeskus Ncb Finland (FIN)
AS3085-020 PRIMARY Allison Transmission Inc Dba Allison Transmission, Inc (USA)
Related Parts
5331-01-279-3361INTERCHANGEABLE
O-RING
5330-01-463-8826INTERCHANGEABLE
PACKING,PREFORMED,A
AS3085-020

Frequently Asked Questions

What is NSN 5331-01-290-4180?

NSN 5331-01-290-4180 is a O-Ring, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-290-4180?

NSN 5331-01-290-4180 has 2 cross-referenced part numbers: 10412209 (Nimikkeistokeskus Ncb Finland), AS3085-020 (Allison Transmission Inc Dba Allison Transmission, Inc).

What NSN replaces 5331-01-290-4180?

There are 2 known substitutes for 5331-01-290-4180: 5331-01-279-3361, 5330-01-463-8826. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3085-020?

Key specifications for AS3085-020: Material Document and Classification: AMS7280 ASSN STD SINGLE MATERIAL RESPONSE; Part Name Assigned by Controlling Agency: PACKING PREFORMED-AMS 7280, 'O'RING; Material: RUBBER FLUOROCARBON CLASS FPM; Center Hole Diameter: 0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN. 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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