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: 4240-21-900-4781

 ISO Parts Catalog
 
  Part Information
 
Part Name:  FILTER,RESPIRATOR,A
Shelf Life: 
Unit of Measure:  EA
Minimum Order Quantity: 
 
Federal Supply Class (FSC): 
4240 - Safety and Rescue Equipment
 

Associated Part Numbers

642-D

4240219004781

219004781

21-900-4781
 
  Ordering Information
 
Pricing Only Displayed
When Logged In!!

Click Here To Log In.
 

   

 

 
  Part Images:         Related Documents




 

    



 Click To View Document
 
Part Number Alternate Description Manf. Qty Price
NAS1306-42DH             50     Click For Quote
NAS1306-42D REV 13    5306-00-989-1330   Bolt      77     Click For Quote
642-D    4240012500779   FILTER      570     Click For Quote
0RR-1642-DR0/2    5945002954171   RELAY      1     Click For Quote
0RR1642-DR0/2    5945002954171   RELAY      2     Click For Quote
CY7C516-42DMB             10     Click For Quote
NAS1106-42D             2     Click For Quote
NAS1116-42D             186     Click For Quote
NAS1306-42D             1     Click For Quote
NAS6206-42D             6084     Click For Quote
NAS6306-42D             1     Click For Quote
NAS6316-42D             100     Click For Quote
RT-D1NC-SS-64-2D1             10     Click For Quote
360102    196-27642-D52   Nest reagent re   Nest Scien   999     Click For Quote
G5206028    T1-1642-DG_12x12   Do Not Block Dr   Lyle   999     Click For Quote
448T13    T1-1642-DG_12x12   Parking Sign: 1   LYLE   999     Click For Quote
52PG06    LISA-KIT3642-DUA   Anti-Ligature D   SECURITECH   999     Click For Quote
52PG07    LISA-KIT3642-DUA   Anti-Ligature D   SECURITECH   999     Click For Quote
413X22    LISA-1DR3642-DUA   Dual Anti-Ligat   SECURITECH   999     Click For Quote
413X21    LISA-1DR3642-DUA   Dual Anti-Ligat   SECURITECH   999     Click For Quote
94031642-DNA-5UG       168 BLCL      999     Click For Quote
44P519    ZLES-9642D   Shelf: 96 in    TENNSCO   999     Click For Quote
44P491    ZLCS-9642D   Shelf: 96 in    TENNSCO   999     Click For Quote
D-600-2642-DC    WMD-600-2642-DC         0     Click For Quote
ECD20073642-D       Ph Iqan Systems      999     Click For Quote
 
 


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

   Privacy Policy

Copyright © ISO Parts, Inc. 2026

        Talk