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 5960-01-046-4884
NSN 6240-01-061-7359
NSN 5965-01-557-7572
NSN 6320-01-396-2080
NSN 5998-01-116-3966
NSN 5945-00-757-4335
NSN 6220-01-586-4669
NSN 5999-00-153-4175
NSN 6320-00-004-9158
NSN 5975-00-925-1197
NSN 6220-01-091-9103
NSN 4140-00-660-8699