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FSG 41 Refrigeration Air Conditioning and Air Circulating Equipment

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:

1. Federal Supply Classification Group – The first 4 digits of the NSN identifies the Federal Supply Class code (FSCG).
2. 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 stocks parts under the FSG 41. Manufacturers for FSG 41 that we carry include:
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