National Stock Number
4820-00-657-4187
National Stock Number (NSN) 4820-00-657-4187, or NIIN 006574187, (parts kit,diaphragm replacement) has an unknown assigned date. NIIN 006574187 was cancelled on September 21, 1999, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 33864. [A PARTS KIT USED TO REPLACE DIAPHRAM(S) IN A BRAKE CHAMBER, CLUTCH CYLINDER, VALVE, AND THE LIKE.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820006574187 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.