PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

57524-00Valve Core

Avox Systems Inc Dba Avox Systems Inc · NSN 2640-00-756-1595 · FSC 2640 · No Item Name Available
Verified by PartsTable
NSN 2640-00-756-1595 — this item is cataloged by the U.S. Government under National Stock Number 2640-00-756-1595. Primary manufacturer part number: 57524-00.
Features
  • Valve Core — FSC 2640
  • Unit Package Type: BOX
  • Accessory Type: VALVE
  • Size Designation: STANDARD
  • Unit Package Quantity: 5
  • Spring Tension Type: HIGH
  • Material: STEEL CORROSION RESISTING SPRING
  • Item Type Category: ACCESSORY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Spring construction
General Description

The Valve Core, cataloged under National Stock Number 2640-00-756-1595, is classified within Federal Supply Class 2640 (No Item Name Available) of the Tires and Tubes group. The primary manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2640-00-756-1595
Primary Part Number57524-00
Item NameValve Core
FSC / FSG2640 / 26 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusCANCELLED
Unit Package TypeBOX
Accessory TypeVALVE
Size DesignationSTANDARD
Unit Package Quantity5
Spring Tension TypeHIGH
MaterialSTEEL CORROSION RESISTING SPRING
Item Type CategoryACCESSORY
Commercial Core Length DesignatorSHORT
Core Environmental ProtectionCORROSION RESISTANT AND HEAT RESISTANT AND OIL RESISTANT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-600114138A14274 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
3110-00-155-6374160920 INTERCHANGEABLE
Bearing,ball,annular
Brinkley Technology Group Llc Dba Hercules Manufacturing
5330-00-178-4738150-4N INTERCHANGEABLE
Seal,plain Encased
Harbormaster Marine, Inc
5133-00-189-9253 INTERCHANGEABLE
Drill,twist
5133-00-189-9308 INTERCHANGEABLE
Drill,twist
3020-00-239-8231 INTERCHANGEABLE
Link,roller Chain
5330-00-260-8787 INTERCHANGEABLE
Seal,plain Encased
5930-00-446-9124266-5408-010 INTERCHANGEABLE
Switch,toggle
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3455-00-596-512219606 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
7490-00-925-194420018 INTERCHANGEABLE
Pulleyxdrivex0s
Pitney Bowes Inc.
Cross-Reference Index
Part NumberManufacturer
57524-00 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
202-W Avox Systems Inc Dba Avox Systems Inc (USA)
20018 Avox Systems Inc Dba Avox Systems Inc (USA)
302-DS Eaton Corporation Dba Air Controls Division Div Air Controls Division (USA)
Related Parts
3110-00-100-6001INTERCHANGEABLE
BEARING,ROLLER,TAPERED
14138A14274
3110-00-155-6374INTERCHANGEABLE
BEARING,BALL,ANNULAR
160920
5330-00-178-4738INTERCHANGEABLE
SEAL,PLAIN ENCASED
150-4N
5133-00-189-9253INTERCHANGEABLE
DRILL,TWIST
5133-00-189-9308INTERCHANGEABLE
DRILL,TWIST
3020-00-239-8231INTERCHANGEABLE
LINK,ROLLER CHAIN
5330-00-260-8787INTERCHANGEABLE
SEAL,PLAIN ENCASED
5930-00-446-9124INTERCHANGEABLE
SWITCH,TOGGLE
266-5408-010
3455-00-596-5122INTERCHANGEABLE
REAMER,MACHINE
19606
7490-00-925-1944INTERCHANGEABLE
PULLEYXDRIVEX0S
20018
5940-00-983-6059INTERCHANGEABLE
TERMINAL BOARD
3110-01-012-7232INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 2640-00-756-1595?

NSN 2640-00-756-1595 is a Valve Core, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 2640 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2640-00-756-1595?

NSN 2640-00-756-1595 has 4 cross-referenced part numbers: 57524-00 (Avox Systems Inc Dba Avox Systems Inc), 202-W (Avox Systems Inc Dba Avox Systems Inc), 20018 (Avox Systems Inc Dba Avox Systems Inc), 302-DS (Eaton Corporation Dba Air Controls Division Div Air Controls Division).

What NSN replaces 2640-00-756-1595?

There are 12 known substitutes for 2640-00-756-1595: 3110-00-100-6001, 3110-00-155-6374, 5330-00-178-4738 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 57524-00?

Key specifications for 57524-00: Special Features: AIRCRAFT STRUT VALVES AND ACCUMALATORS APPLICATION; Unit Package Type: BOX; Accessory Type: VALVE; Size Designation: STANDARD. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2640-00-756-1595 still in active supply?

NSN 2640-00-756-1595 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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