National Stock Number
8475-01-702-5220
National Stock Number (NSN) 8475-01-702-5220, or NIIN 017025220, (visor lock,helmet) was assigned July 13, 2022 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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, 2 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
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) 28521. [A KNOB HAVING A SCREW OR SPRING TYPE STEM WHICH IS INSERTED THROUGH A SLOT OR CHANNEL IN THE CENTER FRONT OF A HELMET WHERE IT IS ATTACHED TO AND CONTROLS THE MOVEMENT OF THE VISOR FROM A POSITION INSIDE THE HELMET TO A POSITION COVERING THE EYES. IT IS LOCKED IN POSITION BY TURNING THE SCREW OR BY RELEASING PRESSURE ON THE SPRING AS APPLICABLE.]. 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 8475017025220 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 Aug 01, 2025.