A filter designed to be used with an obstruction marker light.
NSN 5975-01-206-2605
NSN 5910-00-281-0796
NSN 6105-00-432-0771
NSN 5925-01-176-7182
NSN 5905-01-536-1461
NSN 5950-00-872-0540
NSN 5915-00-628-6103
NSN 5920-00-690-1930
NSN 6610-01-244-7192
NSN 6610-01-590-2263
NSN 6685-01-016-8030
NSN 5920-01-045-1484