A-A-50441, COMMERCIAL ITEM DESCRIPTION: LAMP, INCANDESCENT, T-12, MEDIUM SCREW, 3 CONTACT (22 JUL 1991) [SUPERSEDES MS15545]

A-A-50441, COMMERCIAL ITEM DESCRIPTION: LAMP, INCANDESCENT, T-12, MEDIUM SCREW, 3 CONTACT (22 JUL 1991) [SUPERSEDES MS15545]., The General Services Administration has authorized the use of this commercial item description for all federal agencies. This commercial item description (CID) covers T-12 incandescent lamps with a 3 contact, medium screw base, which are intended for use as navigational lights. These lamps can be identified by industry number 50/50T12.