National Stock Number
8420-01-590-0523
National Stock Number (NSN) 8420-01-590-0523, or NIIN 015900523, (underwear,flyer's) was assigned November 16, 2010 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 52771. [A ONE-PIECE UNDERGARMENT HAVING FEET WORN UNDER COVERALLS TO PROTECT FLYING PERSONNEL AGAINST COLD.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 8420015900523 does not contain precious metals.
This NSN is associated to Schedule B 9803100000: military wearing apparel of all types and materials, including footwear and headwear. The Schedule B End Use is listed as military apparel and footwear. NAICS classification category 314999: all other miscellaneous textile product mills.
This information was last updated on Jul 01, 2025.