National Stock Number
4520-01-622-9654
National Stock Number (NSN) 4520-01-622-9654, or NIIN 016229654, (collar,air conditioning-heating) was assigned October 28, 2013 in the Federal Logistics Information System (FLIS). NIIN 016229654 was cancelled on June 2, 2020, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5365016238877. 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 16, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 15679. [A STRAIGHT FORMED FITTING WITH IDENTICAL INTERNAL ENDS, USED TO FORM A CONNECTION OF TWO AIR CONDITIONING-HEATING FITTINGS.]. 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 4520016229654 does not contain precious metals.
This information was last updated on Jun 01, 2025.