NSN 4820-99-863-5055, 4820998635055
INDICATOR,VALVE OPENING

Federal Supply Classification: FSC 4820 - Valves, Nonpowered
National Item Identification Number: NIIN 998635055
Codification Country: United Kingdom
Item Name Code: INC 37043
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 4820-99-863-5055

National Stock Number (NSN) 4820-99-863-5055, or NIIN 998635055, (indicator,valve opening) has an unknown assigned date. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

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 information was last updated on Oct 31, 2025.