Federal Specification a-a-50552, Nema/ansi Fb-1, Military Specification Number W-F-406d, W-F-406e, W-F-408d, W-S-610d | Csa File Number: 72632; Ul Specifications: Ul 486a-B; Ul File Number: E9998 | Ul Listed | 10.0000 in X 8.1300 in X 15.8800 InSouthern Tier Electric Supply