National Stock Number (NSN) 4810-01-399-0951, or NIIN 013990951, (indicator,valve opening) was assigned November 16, 1994 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 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 8 contracts issued for this part number, with 8 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE7MC24V1057, SPE7M023P2599, SPE7MC19P0575, SPE7MC17VB755, SPE7M416V2302. The total value of the awarded contracts has been US$ 47,366.94.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 12,820. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 27, 2018, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 37043. [AN ITEM SPECIFICALLY DESIGNED TO SHOW THE OPEN, INTERMEDIATE, AND CLOSED DISK RELATIONSHIP TO THE VALVE SEAT. IT MAY BE OF VARIOUS SHAPES, SIZES, AND MECHANICAL DESIGNS SUCH AS GLASS TUBE, NEEDLE AND SLOT. EXCLUDES INDICATOR (1), POSITION; GLASS, LIQUID SIGHT INDICATOR, FLAT.]. 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 4810013990951 does not contain precious metals.
This NSN is associated to Schedule B 8481909090: parts of taps, cocks, valves and similar appliances, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on Jul 01, 2025.