National Stock Number
5520-01-048-5175
National Stock Number (NSN) 5520-01-048-5175, or NIIN 010485175, (frame,observation window) was assigned September 26, 1977 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 one supplier. 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 60504. [A FLAT RIGID ITEM PROVIDED WITH HOLES OR SIMILAR MEANS FOR ATTACHING TO A CONTAINER FOR THE PURPOSE OF HOLDING AN OBSERVATION WINDOW IN PLACE.]. 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 5520010485175 does not contain precious metals.
This NSN is associated to Schedule B 4418100000: windows, french-windows and their frames, of wood. The Schedule B End Use is listed as wood supplies, manufactured. NAICS classification category 321911: wood window and door manufacturing.
This information was last updated on Jul 01, 2025.