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 5950-00-428-6313
NSN 5895-01-301-8240
NSN 5998-00-542-9656
NSN 2925-01-043-9786
NSN 5835-00-433-0170
NSN 5930-01-547-1855
NSN 5990-00-478-6518
NSN 6620-01-456-0529
NSN 6130-01-595-0810
NSN 6685-01-341-2056
NSN 5930-01-604-8332
NSN 6320-00-194-4252