Filter used for nvis operations
A transparent or translucent item designed to enclose or be placed in front of a light source. Sections of the lens may be opaque. It may or may not include a holder. It is designed to be either a replacement unit for a specific type of light, such as light, indicator; light, navigational, marine; stop light, vehicular; and lantern, electric or that portion of a switch, (as modified) used as an actuator and having provisions for illumination. See also, window, lighting fixture; globe; electric light; and filter (2), (as modified).
Classification: Other instruments and apparatus, specially designed for telecommunications (for examle, cross-talk meters, gain measuring instruments etc)
NSN 5998-00-518-8565
NSN 6320-01-643-0850
NSN 5990-00-548-6163
NSN 5960-00-256-3622
NSN 5905-01-463-8665
NSN 5855-00-869-3635
NSN 5999-01-422-4921
NSN 6220-00-931-3299
NSN 6650-01-381-7296
NSN 5998-00-192-4017
NSN 5910-01-367-7910
NSN 5895-01-493-8832