5220-00-782-1908 (142-56)
NSN 5220-00-782-1908 (NIIN 00-782-1908) is a master precision level in Federal Supply Class 5220, Inspection Gages And Precision Layout Tools — a precisely calibrated instrument used as a master reference standard to establish an absolute horizontal plane. Manufacturer part number 142-56 (Taylor Hobson Inc, CAGE 64790); also referenced as TB19 (Taylor Hobson Inc).
Key specs: vial graduations marking level; full characteristics table below. NIIN assigned January 1960; DEMIL A (none required); unit of issue EA (each), $458.87 gov standard price; export Schedule B 9031.80.8080; ships at 2.9 lb / 0.2402 cu ft. Supersedes 5220-00-927-0439 (1967).