National Stock Number
4730-00-163-4442
National Stock Number (NSN) 4730-00-163-4442, or NIIN 001634442, (reducer,pipe) was assigned November 3, 1971 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Nov 29, 2012. There have been 3 contracts issued for this part number, with 3 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPM7M013M1123, SPM7M012M2887, SPM7M311M5084. The total value of the awarded contracts has been US$ 534.91.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2005, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 08505. [A STRAIGHT PIPE FITTING HAVING A DIFFERENT SIZE CONNECTION ON EACH END. IT IS DESIGNED TO JOIN TWO PIPES OF DIFFERENT SIZES OR TWO PIPE FITTINGS OF DIFFERENT SIZES. EXCLUDES:BUSHING (AS MODIFIED).]. 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 4730001634442 does not contain precious metals.
This NSN is associated to Schedule B 3917390002: tubes,pipes, hoses, and fittings thereof of plastics, nesoi. The Schedule B End Use is listed as other industrial supplies. NAICS classification category 326199: all other plastics product manufacturing.
This information was last updated on Jul 01, 2025.