National Stock Number
6650-00-729-6190
National Stock Number (NSN) 6650-00-729-6190, or NIIN 007296190, (iris diaphragm,optical instrument) has an unknown assigned date. NIIN 007296190 was cancelled on August 2, 1992, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 22592. [AN ADJUSTABLE ITEM OF THIN, OVERLAPPING OPAQUE PLATES WHICH ARE ACTUATED BY A RING OR OTHER DEVICE SO AS TO CHANGE THE DIAMETER OF A CENTRAL OPENING, FOR CONTROLLING THE INTENSITY OF TRANSMITTED ILLUMINATION. IT IS USUALLY EMPLOYED TO REGULATE THE APERTURE OF A LENS IN MICROSCOPES, AND OTHER OPTICAL INSTRUMENTS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6650007296190 does not contain precious metals.
This information was last updated on Jul 01, 2025.