Gage, setting; u/o m61a1 20mm gun nose guide
A gage used to check or inspect contour, radius, chamfer, depth, thickness and/or height by inclusive fit of a work piece.
Classification: Railway track fixtures; mechanical signaling, safety or traffic control equip for railways, roads, inland waterways, airfield, ports; and parts
NSN 5985-00-415-1660
NSN 5910-01-480-8577
NSN 6150-01-580-0011
NSN 6650-01-369-9780
NSN 5905-00-406-1421
NSN 5945-00-964-7361
NSN 5930-01-121-0956
NSN 6130-00-181-8794
NSN 6105-00-432-0771
NSN 4140-01-330-4137
NSN 6645-00-927-8735
NSN 6650-01-014-5990