National Stock Number (NSN) 4820-01-391-6445, or NIIN 013916445, (indicator,valve opening) was assigned June 15, 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. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 24 contracts issued for this part number, with 29 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE7MX24F479A, SPE7MX24F392Y, SPE7MX24F358U, SPE7MX24F300U, SPE7MX24F214U. The total value of the awarded contracts has been US$ 72,126.78.
This NSN is fairly common among different weapons systems, belonging to 16 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 10,631. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 02, 2005, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 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 4820013916445 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.