A device which utilizes a cylindrical or circular vial, level. It is used for leveling, adjusting and setting angles for fire control instruments of which it is an integral part.
Classification: Military equipments not identified by kind
NSN 5905-01-453-0125
NSN 5935-00-528-9319
NSN 6685-00-407-1028
NSN 5915-00-819-3653
NSN 5999-01-364-7931
NSN 6650-01-193-5911
NSN 6320-01-519-0916
NSN 6320-00-483-0451
NSN 5996-01-554-0479
NSN 5920-00-404-1078
NSN 6135-01-282-4326
NSN 5835-00-419-6576