4 1/4" X 3 3/4" (107mm X 95mm)
(skirt incuse) Fred M. Locke {Fred Locke}
Picture courtesy Bob Berry |
4 1/4" X 3 3/4" (107mm X 95mm)
(skirt incuse) Fred M. Locke {Fred Locke}
Picture courtesy Elton Gish |
U-639: USA
4 1/4" X 3 3/4" (107mm X 95mm)
(skirt incuse) Fred M. Locke {Fred Locke}
Picture courtesy Bob Berry |
4 1/4" X 3 3/4" (107mm X 95mm)
(skirt incuse) Fred M. Locke {Fred Locke}
Picture courtesy Elton Gish |
U number assignment by Jack Tod
Return to the National Insulator US Unipart page