To homogenize the procurement process, the U.S. Department of Defense put into place a system that uniquely and permanently identifies the items that it purchases. This system, called the National Stock Number (NSN), comprises of 13 digits which are broken down into the 2 following identifying subcategories:
Federal Supply Classification Group – The first 4 digits of the NSN identifies the Federal Supply Class code (FSCG).
National Item Identification Number – The last 9 digits of the NSN identifies the National Item Identification Number (NIIN).
The FSCG and NIIN can be broken down even further into the following classifying subcategories:
Federal Supply Group – The first 2 digits of the FSCG identifies the Federal Supply Group (FSG).
Federal Supply Code – The last 2 digits of the FSCG identifies the Federal Supply Code (FSC).
National Codification Bureau – The first 2 digits of the NIIN identifies the National Codification Bureau (NCB) or NATO country code.
Item Serial Number – The last 7 digits of the NIIN is merely an item serial number that does not follow an assignment pattern.
ASAP Semiconductor supplies parts belonging to Federal Supply Group 42 which is identified by the Defense Logistics Agency as Fire Fighting Rescue and Safety Equipment. Federal Supply Group 42 Fire Fighting Rescue and Safety Equipment includes the following:
Through our proprietary website Just NSN-Parts, you can find wide-ranging inventory lists of National Stock Numbers that are categorized within the Federal Supply Codes listed above. Within Federal Supply Code 4210, Firefighting equipment, we supply fire hose reels, sprinkler heads and hose fittings having one or more fire hose end connections. Within Federal Supply Code 4240, Safety and rescue equipment, we have the resources to supply portable fire escapes and safety nets. For Federal Supply Code 4250, Recycling and reclamation equipment, all of the National Stock Number parts that we supply within this code include material and machinery designed to remove and neutralize possible re-use of substances. All of the National Stock Number parts that we supply are all recognized by the Defense Logistics Agency.