PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31332O-Ring

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5331-01-423-4043 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-423-4043 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-423-4043. Primary manufacturer part number: 31332.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-423-4043, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (CAGE 84760); Cummins Power Systems, Llc Dba Cummins (CAGE 0CTH1)
Technical Specifications
ParameterValue
NSN5331-01-423-4043
Primary Part Number31332
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5331-00-081-93011355-908 INTERCHANGEABLE
O-Ring
Woodward, Inc. Div Fuel Systems and Controls
5305-00-104-5078NAS1352-6LE64P INTERCHANGEABLE
Screw,cap,socket Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
9540-00-288-0463 INTERCHANGEABLE
Beam,structural
3110-00-763-0259L68149 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
2520-01-141-531231332 INTERCHANGEABLE
Clutch,magnetic,vehicular
Purolator Products Co Div Motor Components, Llc
6525-01-522-465131332 INTERCHANGEABLE
Viewer,dental Radiographic Film
Clive Craig Inc
Cross-Reference Index
Part NumberManufacturer
31332 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
3921938 Cummins Power Systems, Llc Dba Cummins (USA)
Related Parts
5331-00-081-9301INTERCHANGEABLE
O-RING
1355-908
5305-00-104-5078INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
NAS1352-6LE64P
9540-00-288-0463INTERCHANGEABLE
BEAM,STRUCTURAL
3110-00-763-0259INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
L68149
2520-01-141-5312INTERCHANGEABLE
CLUTCH,MAGNETIC,VEHICULAR
31332
6525-01-522-4651INTERCHANGEABLE
VIEWER,DENTAL RADIOGRAPHIC FILM
31332

Frequently Asked Questions

What is NSN 5331-01-423-4043?

NSN 5331-01-423-4043 is a O-Ring, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-423-4043?

NSN 5331-01-423-4043 has 2 cross-referenced part numbers: 31332 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 3921938 (Cummins Power Systems, Llc Dba Cummins).

What NSN replaces 5331-01-423-4043?

There are 6 known substitutes for 5331-01-423-4043: 5331-00-081-9301, 5305-00-104-5078, 9540-00-288-0463 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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