PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

83950Piston with Stem

Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp · NSN 4820-00-506-1268 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-506-1268 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-506-1268. Primary manufacturer part number: 83950.
Features
  • Piston with Stem — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Piston with Stem, cataloged under National Stock Number 4820-00-506-1268, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston with Stem
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersWestinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (CAGE 82722)
Technical Specifications
ParameterValue
NSN4820-00-506-1268
Primary Part Number83950
Item NamePiston with Stem
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWestinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6110-00-112-0253 INTERCHANGEABLE
Protector,thermal-Overload,elect
5935-00-917-54592520607 INTERCHANGEABLE
Connector,receptacle,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6145-01-345-191683950 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
6540-01-462-9952 INTERCHANGEABLE
Washer,lens
5895-01-678-375083950 INTERCHANGEABLE
Ground Control Station,unmanned
Aerovironment, Inc. Dba Aerovironment Inc
Cross-Reference Index
Part NumberManufacturer
83950 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Related Parts
6110-00-112-0253INTERCHANGEABLE
PROTECTOR,THERMAL-OVERLOAD,ELECT
5935-00-917-5459INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2520607
6145-01-345-1916INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
83950
6540-01-462-9952INTERCHANGEABLE
WASHER,LENS
5895-01-678-3750INTERCHANGEABLE
GROUND CONTROL STATION,UNMANNED
83950

Frequently Asked Questions

What is NSN 4820-00-506-1268?

NSN 4820-00-506-1268 is a Piston with Stem, manufactured by Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-506-1268?

NSN 4820-00-506-1268 has 1 cross-referenced part number: 83950 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp).

What NSN replaces 4820-00-506-1268?

There are 5 known substitutes for 4820-00-506-1268: 6110-00-112-0253, 5935-00-917-5459, 6145-01-345-1916 and 2 more. Verify interchangeability with system specifications before substitution.

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