National Stock Number (NSN) 4730-00-028-7021, or NIIN 000287021, (adapter,straight,pipe to hose) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 5 stock numbers: 4730000558729, 4730010803639, 4730000514706, 4730010676458, 4730012752216.
There are 25 manufacturer part numbers associated with this NSN. 8 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 21 suppliers. Today, 17 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 6 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over a year. There have been 12 contracts issued for this part number, with 12 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 7 different suppliers. The last contract numbers awarded were: SPE7M423V4682, SPE7M319V2016, SPE7M318V1197, SPE7M114M7359, SPM7M312V3348. The total value of the awarded contracts has been US$ 6,719.65.
This NSN is very common among different weapons systems, belonging to 62 different platforms.
There has been a small amount of 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 25, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 03775. [AN ADAPTER HAVING STANDARD PIPE THREADS ON ONE END OR AN UNTHREADED END DESIGNED TO ACCOMMODATE A PIPE. THE OTHER END HAS STANDARD HOSE THREADS, AN INCOMPLETE PART OF A THREADED END CONNECTION THAT GRIPS THE HOSE DIRECTLY, OR IS UNTHREADED AND DESIGNED TO ACCOMMODATE A HOSE. IT IS DESIGNED TO JOIN A PIPE OR PIPE FITTING TO A HOSE OR HOSE FITTING IN A STRAIGHT LINE.]. 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 4730000287021 does not contain precious metals.
This NSN is associated to Schedule B 7412200000: copper alloy tube or pipe fittings. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Jul 01, 2025.