National Stock Number
4730-00-187-0491
National Stock Number (NSN) 4730-00-187-0491, or NIIN 001870491, (nipple,tube) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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 5 years.
This NSN is unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 03783. [A STRAIGHT, ONE-PIECE FITTING USED TO JOIN A TUBE OR TUBE FITTING TO ANOTHER TUBE OR TUBE FITTING. IT MAY HAVE ANY TYPE EXTERNALLY THREADED TUBE CONNECTIONS OF THE SAME SIZE ON BOTH ENDS AND IS USUALLY SHAPED EXTERNALLY AT THE CENTER TO ACCOMMODATE A WRENCH. IT MAY INCLUDE NUTS, SLEEVES, AND/OR GROMMETS.]. 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 4730001870491 does not contain precious metals.
This NSN is associated to Schedule B 7307994000: other fittings nesoi of alloy steel not stainless. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Jul 01, 2025.