Material and Finishes Mounting tube and nuts, aluminum, black anodized per MIL-A8625A. Lockwasher, stainless steel. Brass terminals, tin plated per MIL-T-10727A. Cap Assembly Lens, high impact-resistant plastic per L-P-349. NVG Green, flat glass lens. Lens holders, aluminum, black anodized. Lamp T-1 ¾ midget flange base. Check with your Flame representative ...