PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M83248/1-902O-Ring

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-01-323-9946 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-323-9946 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-323-9946. Primary manufacturer part number: M83248/1-902.
Features
  • O-Ring — FSC 5331
  • Elongation Percentage: 125 MAXIMUM
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Criticality Code Justification: ZZZY
  • Center Hole Diameter: 0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
  • Peripheral Diameter: 0.367 INCHES NOMINAL IN
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 5331-01-323-9946, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5331-01-323-9946
Primary Part NumberM83248/1-902
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
Elongation Percentage125 MAXIMUM
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
MaterialRUBBER FLUOROCARBON CLASS FPM
Criticality Code JustificationZZZY
Center Hole Diameter0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
Peripheral Diameter0.367 INCHES NOMINAL IN
Cross-Sectional Height0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-165-1971AS3208-02 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5330-01-355-3155 INTERCHANGEABLE
Packing,preformed
Cross-Reference Index
Part NumberManufacturer
M83248/1-902 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20365FN23 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6689.902.169 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
5331-00-165-1971INTERCHANGEABLE
O-RING
AS3208-02
5330-01-355-3155INTERCHANGEABLE
PACKING,PREFORMED

Frequently Asked Questions

What is NSN 5331-01-323-9946?

NSN 5331-01-323-9946 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 5331-01-323-9946?

NSN 5331-01-323-9946 has 3 cross-referenced part numbers: M83248/1-902 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20365FN23 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A6689.902.169 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 5331-01-323-9946?

There are 2 known substitutes for 5331-01-323-9946: 5331-00-165-1971, 5330-01-355-3155. Verify interchangeability with system specifications before substitution.

What are the specifications of M83248/1-902?

Key specifications for M83248/1-902: Elongation Percentage: 125 MAXIMUM; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Material: RUBBER FLUOROCARBON CLASS FPM. 8 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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