Apollo-era ground support electrical junction box from the John F. Kennedy Space Center, measuring 7.5″ x 7.5″ x 6″, with KSC label on the side: "Junction Box Assy., NASA PN J75M07975-9, Ref Des 6306, Contr. No. NAS8-5608, Accept Date August 68, Wt. (lb) 13.75…by The Boeing Co." The electrical box has one huge 2.75″ diameter port on the side, and eight smaller ports on top, all with screw-on caps. The contract number associates this piece with the Boeing-built S-IC—the first stage of the Saturn V launch vehicle.