PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9464K271O-Ring

Mcmaster-Carr Supply Co · NSN 5331-01-646-1080 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-646-1080 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-646-1080. Primary manufacturer part number: 9464K271.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 1.301 INCHES NOMINAL IN
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Outside Diameter: 1.441 INCHES NOMINAL IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Temp Rating: 0.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
  • Cross-Sectional Height: 0.070 INCHES NOMINAL IN
  • Color: BLACK
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 5331-01-646-1080, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 7 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-646-1080
Primary Part Number9464K271
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Center Hole Diameter1.301 INCHES NOMINAL IN
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Outside Diameter1.441 INCHES NOMINAL IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Temp Rating0.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
Cross-Sectional Height0.070 INCHES NOMINAL IN
ColorBLACK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-064-4354 INTERCHANGEABLE
O-Ring
5331-00-283-4609 INTERCHANGEABLE
O-Ring
5331-01-148-8215 INTERCHANGEABLE
O-Ring
5331-01-662-9139AS568-027 INTERCHANGEABLE
O-Ring
Gentex Corp
5331-01-668-1958 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
9464K271 PRIMARY Mcmaster-Carr Supply Co (USA)
AS568-027 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5331-00-064-4354INTERCHANGEABLE
O-RING
5331-00-283-4609INTERCHANGEABLE
O-RING
5331-01-148-8215INTERCHANGEABLE
O-RING
5331-01-662-9139INTERCHANGEABLE
O-RING
AS568-027
5331-01-668-1958INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-01-646-1080?

NSN 5331-01-646-1080 is a O-Ring, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-646-1080?

NSN 5331-01-646-1080 has 2 cross-referenced part numbers: 9464K271 (Mcmaster-Carr Supply Co), AS568-027 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5331-01-646-1080?

There are 5 known substitutes for 5331-01-646-1080: 5331-00-064-4354, 5331-00-283-4609, 5331-01-148-8215 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9464K271?

Key specifications for 9464K271: Center Hole Diameter: 1.301 INCHES NOMINAL IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; End Item Identification: F-15SA; Outside Diameter: 1.441 INCHES NOMINAL IN. 9 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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