4820-00-705-7897 (970327-14-30-6)
NSN 4820-00-705-7897 (NIIN 00-705-7897) 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 970327-14-30-6 (Clary Corp, CAGE 71503); also referenced as 9093995 (U S Army Tank Automotive Command).
Key specs: 3000 psi maximum single response operating pressure; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $297.72 gov standard price.