PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

538101Valve,brake

Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp · NSN 2240-00-366-1042 · FSC 2240 · No Item Name Available
Verified by PartsTable
NSN 2240-00-366-1042 — this item is cataloged by the U.S. Government under National Stock Number 2240-00-366-1042. Primary manufacturer part number: 538101.
Features
  • Valve,brake — FSC 2240
  • 5 verified cross-references
  • Primary manufacturer: Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,brake, cataloged under National Stock Number 2240-00-366-1042, is classified within Federal Supply Class 2240 (No Item Name Available) of the Railway Equipment group. The primary manufacturer of record is Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2240-00-366-1042
Primary Part Number538101
Item NameValve,brake
FSC / FSG2240 / 22 — No Item Name Available
ManufacturerWestinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5930-00-583-886111SM1T INTERCHANGEABLE
Switch,sensitive
Honeywell International Inc. Dba Honeyweel Sensing & Controls
5305-00-721-31949018270 INTERCHANGEABLE
Screw,machine
Us Army Aviation and Missile Command
5940-00-947-4054AAAS60TFX INTERCHANGEABLE
Terminal,compression
Frc Electrical Industries Inc
5330-01-326-759812358784-1 INTERCHANGEABLE
Seal,plain Encased
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
N6321 Eaton Aerospace, Llc Dba Jackson South (USA)
N6321 Eaton Aerospace, Llc Dba Jackson South (USA)
538101 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
8120858 PRIMARY General Motors Corp (USA)
N6321 General Signal Corp (USA)
Related Parts
5930-00-583-8861INTERCHANGEABLE
SWITCH,SENSITIVE
11SM1T
5305-00-721-3194INTERCHANGEABLE
SCREW,MACHINE
9018270
5940-00-947-4054INTERCHANGEABLE
TERMINAL,COMPRESSION
AAAS60TFX
5330-01-326-7598INTERCHANGEABLE
SEAL,PLAIN ENCASED
12358784-1

Frequently Asked Questions

What is NSN 2240-00-366-1042?

NSN 2240-00-366-1042 is a Valve,brake, manufactured by Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp, classified under FSC 2240 (No Item Name Available). Status: active.

What are the part numbers for NSN 2240-00-366-1042?

NSN 2240-00-366-1042 has 5 cross-referenced part numbers: N6321 (Eaton Aerospace, Llc Dba Jackson South), N6321 (Eaton Aerospace, Llc Dba Jackson South), 538101 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), 8120858 (General Motors Corp), N6321 (General Signal Corp).

What NSN replaces 2240-00-366-1042?

There are 4 known substitutes for 2240-00-366-1042: 5930-00-583-8861, 5305-00-721-3194, 5940-00-947-4054 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 538101?

Key specifications for 538101: End Item Identification: 2210002620751,2210002992854,2210003717535. 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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