Two for more different types of items having a common mounting or mounted on each other which together form a portion of a light signal receiver-transmitter.
NSN 6135-00-461-3590
NSN 5905-01-346-1717
NSN 5975-01-012-2591
NSN 5985-01-463-3283
NSN 6320-01-389-5853
NSN 5915-00-776-6496
NSN 6130-01-160-0227
NSN 5945-01-096-1081
NSN 6620-01-406-3584
NSN 5920-01-487-6419
NSN 6240-01-570-8070
NSN 5965-01-386-2988