PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

531631C91Valve,brake Pneumatic

Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ · NSN 2530-00-586-4240 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-586-4240 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-586-4240. Primary manufacturer part number: 531631C91.
Features
  • Valve,brake Pneumatic — FSC 2530
  • End Connection Quantity: 3
  • First End Nominal Pipe Size Accommodated: 0.250 INCHES IN
  • First End Connection Type: THREADED INTERNAL PIPE
  • First End Thread Class: 2B
  • Second End Relationship with First End: IDENTICAL
  • Material: STEEL FLOW CONTROL DEVICE
  • Material: ZINC ALLOY BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Flow Control Device construction
General Description

The Valve,brake Pneumatic, cataloged under National Stock Number 2530-00-586-4240, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2530-00-586-4240
Primary Part Number531631C91
Item NameValve,brake Pneumatic
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerNavistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
StatusCANCELLED
End Connection Quantity3
First End Nominal Pipe Size Accommodated0.250 INCHES IN
First End Connection TypeTHREADED INTERNAL PIPE
First End Thread Class2B
Second End Relationship with First EndIDENTICAL
MaterialSTEEL FLOW CONTROL DEVICE
MaterialZINC ALLOY BODY
First End Thread DirectionRIGHT-HAND
Flow Control DevicePISTON, SPRING LOADED
First End Thread Series DesignatorNPT
Third End Relationship with Preceding EndsIDENTICAL WITH FIRST END
Valve Operation MethodLEVER
First End Style DesignatorPLAIN
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
First End Nominal Thread Size0.250 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
2640-00-052-085115R INTERCHANGEABLE
Valve,pneumatic Tire
Schrader-Bridgeport International Inc Dba Schrader Automotive
5306-00-335-4245520878 INTERCHANGEABLE
Bolt,machine
Renk America Llc Div Renk America
5935-00-481-7420 INTERCHANGEABLE
Connector,receptacle,electrical
2915-00-594-7926520878 INTERCHANGEABLE
Lever Assembly,servo
Hamilton Sundstrand Corporation Dba Collins Aerospace
5330-00-846-8833P500-12 INTERCHANGEABLE
Packing,preformed
Mission Systems Davenport Inc.
Cross-Reference Index
Part NumberManufacturer
531631C91 PRIMARY Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
P50012 Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
520878 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
P59341-0001 Bosch Rexroth Corporation Div Bosch Rexroth (USA)
Related Parts
2640-00-052-0851INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
15R
5306-00-335-4245INTERCHANGEABLE
BOLT,MACHINE
520878
5935-00-481-7420INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2915-00-594-7926INTERCHANGEABLE
LEVER ASSEMBLY,SERVO
520878
5330-00-846-8833INTERCHANGEABLE
PACKING,PREFORMED
P500-12

Frequently Asked Questions

What is NSN 2530-00-586-4240?

NSN 2530-00-586-4240 is a Valve,brake Pneumatic, manufactured by Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/, classified under FSC 2530 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2530-00-586-4240?

NSN 2530-00-586-4240 has 4 cross-referenced part numbers: 531631C91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), P50012 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), 520878 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), P59341-0001 (Bosch Rexroth Corporation Div Bosch Rexroth).

What NSN replaces 2530-00-586-4240?

There are 5 known substitutes for 2530-00-586-4240: 2640-00-052-0851, 5306-00-335-4245, 5935-00-481-7420 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 531631C91?

Key specifications for 531631C91: End Connection Quantity: 3; First End Nominal Pipe Size Accommodated: 0.250 INCHES IN; First End Connection Type: THREADED INTERNAL PIPE; First End Thread Class: 2B. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-00-586-4240 still in active supply?

NSN 2530-00-586-4240 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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