National Stock Number
1005-21-900-9739
National Stock Number (NSN) 1005-21-900-9739, or NIIN 219009739, (firing attachment,blank ammunition) has an unknown assigned date. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 22791. [AN ITEM ATTACHED TO THE FLASH SUPPRESSOR OR MUZZLE-END OF A SMALL ARMS WEAPON, SUCH AS A RIFLE OR MACHINE GUN, OR AT THE BREECH-END OF AN AUTOMATIC GUN, USED WITH BLANK AMMUNITION TO SIMULATE REPETITIVE OR SELF-LOADING ACTION OF AUTOMATIC OR SEMIAUTOMATIC WEAPONS. IT MAY INCLUDE A BREECH SHIELD TO DEFLECT BREECH GAS OR POWDER PARTICLES FROM THE FACE OF THE SHOOTER.].
This information was last updated on Jan 02, 2026.