Talk:NATO Stock Number

Related Codes?
I'm using a product that mentions some "related codes" to the NSN, but don't know what they all are. There are four, COG (2-digit prefix), MAT (1-digit prefix), SMM (2-digit suffix)--seems to be the same as a Material Management Code, and MAT (2-digit suffix). Can anyone shed some light on what these codes are, and what their significance is with respect to NSNs?

Thanks! 70.251.155.127 (talk) 15:44, 22 August 2008 (UTC)


 * Ok, I've found out some more on this, so I now know that COG represents a Cognizance Code, SMM represents a SMIC or Material Management Code, and ACT is an activity code. I think the COG, SMIC, and ACT codes are for Navy purposes, and MMC is for the Air Force, but perhaps they are generic DoD codes.  —Preceding unsigned comment added by 70.247.161.5 (talk) 14:21, 13 September 2008 (UTC)

"Urban Myth" Material
I removed this material, which is non-encyclopedic and should not be in the article. If anyone can sort it out, please do so.


 * Originally, the ghi and jklm subgroups were envisioned to relate to one another in a way similar to the prefix and suffix of a local telephone number. However, by 1999, all attempts to preserve this relationship had generally been abandoned because it was too difficult. Urban myth this is not true see NAMSA web site for proper explanation.

Taquito1 (talk) 14:21, 5 April 2010 (UTC)

Too many TLAs?
Can someone who knows anything about this clear up all the acronyms? The article refers to an initial 4-digit FSC abcd, while the diagram has a 4-digit FSCG split into a 2-digit FSC ab and FSG cd. The acronyms FSCG and FSG are never explained anywhere.

82.11.159.188 (talk) 12:33, 28 November 2010 (UTC)

FSC Definition
I have found that many people (and systems) refer to the first 4 digits (abcd) of an NSN as the "FSC". The most official definition of the NSN I found was here http://www.dlis.dla.mil/PDFs/NSN.pdf which refers to the first 4 digits (abcd) as the "FSC". The current NSN article defines the FSC as the 3rd and 4th digits (cd) of the NSN. Where is the official definition of the NSN breakdown? — Preceding unsigned comment added by Ghartsho (talk • contribs) 14:26, 26 November 2013 (UTC)


 * Not the best article it is a bit mixed up between the older FSN and the newer NSN, the FSC was the Federal Stock Code in the original American system (the first four-digits) in the NATO system it is still the first four but now called the NATO Supply Classification Code (NSC). Perhaps somebody with time can sort the article out refer http://www.nato.int/structur/ac/135/ncs_guide/english/e_1-6-5.htm MilborneOne (talk) 22:30, 26 November 2013 (UTC)

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