4820-00-698-6026 (764382)
NSN 4820-00-698-6026 (NIIN 00-698-6026) is a restrictor check valve in Federal Supply Class 4820, Valves, Nonpowered — a valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. Manufacturer part number 764382 (Lockheed Martin Corp, CAGE 98897).
NIIN assigned January 1963; DEMIL B (USML, demil required).