Consists of 1 mounting plate and 1 connector receptacle electrical, plate material is aluminum alloy sheet temper h34 per qqa318 0.312 in. Thick, anodized finish per military standard 171, dimensions are 1.156 in. Lg. 1.750 in. W 2.750 in. H, two 0.2187 diameter mounting holes on 0.875 in. By 1.750 in. Mtg centers