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 5935-01-245-8678
NSN 6610-00-536-4977
NSN 6110-01-211-7209
NSN 5835-01-576-2040
NSN 6110-01-058-5321
NSN 5905-01-275-2209
NSN 5945-01-245-9358
NSN 6220-01-381-1793
NSN 6685-00-127-0934
NSN 5855-01-283-3730
NSN 5960-01-178-7500
NSN 6620-01-434-6538