PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50942O-Ring

Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng · NSN 5331-01-643-9873 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-643-9873 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-643-9873. Primary manufacturer part number: 50942.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-643-9873, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-643-9873
Primary Part Number50942
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerEsab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4130-00-507-5173 INTERCHANGEABLE
Clamp,blower
5360-00-598-4946 INTERCHANGEABLE
Spring,helical,extension
6220-01-068-8504450-01-122 INTERCHANGEABLE
Stop Light-Taillight,vehicular
Ktm 2 Llc Dba Arrow Safety Device Company
5330-01-122-849031490 INTERCHANGEABLE
Gasket
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
3930-01-605-3435509-42 INTERCHANGEABLE
Truck,lift,fork
Jcb Construction Inc.
5340-01-607-728250942 INTERCHANGEABLE
Clevis,rod End
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Cartridge Systems Division
Cross-Reference Index
Part NumberManufacturer
50942 PRIMARY Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng (USA)
T/M SECT 6 PG 4-7 Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng (USA)
C-2235227 REV D ITEM NO 7 Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng (USA)
Related Parts
4130-00-507-5173INTERCHANGEABLE
CLAMP,BLOWER
5360-00-598-4946INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
6220-01-068-8504INTERCHANGEABLE
STOP LIGHT-TAILLIGHT,VEHICULAR
450-01-122
5330-01-122-8490INTERCHANGEABLE
GASKET
31490
3930-01-605-3435INTERCHANGEABLE
TRUCK,LIFT,FORK
509-42
5340-01-607-7282INTERCHANGEABLE
CLEVIS,ROD END
50942

Frequently Asked Questions

What is NSN 5331-01-643-9873?

NSN 5331-01-643-9873 is a O-Ring, manufactured by Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-643-9873?

NSN 5331-01-643-9873 has 3 cross-referenced part numbers: 50942 (Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng), T/M SECT 6 PG 4-7 (Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng), C-2235227 REV D ITEM NO 7 (Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng).

What NSN replaces 5331-01-643-9873?

There are 6 known substitutes for 5331-01-643-9873: 4130-00-507-5173, 5360-00-598-4946, 6220-01-068-8504 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50942?

Key specifications for 50942: End Item Identification: 2232855 OXY C. 1 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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