No other part numbers with same form, fit, and function found.
A small, tubular item utilizing an eyepiece, cross hair reticle, and an objective lens, to align the optical axis to the mechanical axis of a telescopic instrument. It does not have the viewing power of a telescope. It may have two like items secured in a common holder for simultaneous checking of a dual optical system.
NSN 6320-01-281-6028
NSN 5925-01-606-5350
NSN 6150-00-944-8797
NSN 5960-00-523-5700
NSN 5920-01-660-6972
NSN 6150-01-227-1529
NSN 5915-01-054-0064
NSN 6620-01-007-8368
NSN 6150-01-323-3582
NSN 5910-01-596-1685
NSN 5945-00-493-5578
NSN 6645-01-352-6583