PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-R-83248/2O-Ring

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-01-127-8065 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-127-8065 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-127-8065. Primary manufacturer part number: MIL-R-83248/2.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 2.129 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL
  • Center Hole Diameter: 1.971 INCHES MINIMUM AND 2.007 INCHES MAXIMUM IN
  • Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
  • 2 verified cross-references
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 5331-01-127-8065, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-127-8065
Primary Part NumberMIL-R-83248/2
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Outside Diameter2.129 INCHES NOMINAL IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Hardness Rating90.0 SHORE DUROMETER A NOMINAL
Center Hole Diameter1.971 INCHES MINIMUM AND 2.007 INCHES MAXIMUM IN
Temp Rating-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-01-241-1930 INTERCHANGEABLE
Packing,preformed
Cross-Reference Index
Part NumberManufacturer
MIL-R-83248/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M83248/2-033 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5330-01-241-1930INTERCHANGEABLE
PACKING,PREFORMED

Frequently Asked Questions

What is NSN 5331-01-127-8065?

NSN 5331-01-127-8065 is a O-Ring, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-127-8065?

NSN 5331-01-127-8065 has 2 cross-referenced part numbers: MIL-R-83248/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M83248/2-033 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5331-01-127-8065?

There is 1 known substitute for 5331-01-127-8065: 5330-01-241-1930. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-R-83248/2?

Key specifications for MIL-R-83248/2: Outside Diameter: 2.129 INCHES NOMINAL IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com