Military, Aviation, Parts and Components. National Stock Number, NSN, Part Number, Search, MCRL, MCRD, CHAR-DATA, Buy, Sell, Marketplace, Free Locator Service   Military and Aviation Parts           Welcome Guest    
Inventory Search                   
Log into the site
User Name: 
Password: 
Remember me!
 
 
 
 
 
Navigation Menu
Home
Request Quote
Parts Catalog
About ISO Parts
Register
 
Full NSN Database
Search Datasheets
Additional Resources
 
ISO 9001:2015 Registered
View our ISO 9001:2015 AS9120:2016 Certificate
NSN National Stock Number Search, Part Number Search, Cross-Reference, MCRD, MCRL, Military, Aviation Components, Technical Characteristics, Management DataSearch the National Stock Number (NSN)
Master Cross-Reference Database (MCRD)
 
By Part# :   
                                Enter First Part of Part Number with or without dashes,etc. (Punctuation Independent)
 
By NSN :   
                                Enter Full NSN or 9 Digit NIIN (Last 9 digits of NSN) (with or without dashes)
 
By Keywords :   
                                Enter Keywords To Search For Parts By Description and Characteristics
Details for NSN: 5640-21-743-4001

 ISO Parts Catalog
 
  Part Information
 
Part Name:  SOUND CONTROLLING B
Shelf Life: 
Unit of Measure:  EA
Minimum Order Quantity: 
 
Federal Supply Class (FSC): 
5640 - Wallboard, Building Paper, and Thermal Insulation Materials
 

Associated Part Numbers

MIL-1-7171

5640217434001

217434001

21-743-4001
 
  Ordering Information
 
Pricing Only Displayed
When Logged In!!

Click Here To Log In.
 

   

 

 
  Part Images:         Related Documents




 

    



 Click To View Document
 
 
 


Credit Cards Accepted - Government Cards Welcome   Credit Cards Accepted   Payment Terms Available On Request (Discretion Reserved)

   Privacy Policy

Copyright © ISO Parts, Inc. 2026

        Talk