Standard fuse holders; For 1⁄4″ x 1 1⁄4″ (6.3 x 32mm) fuses; Maximum panel thickness 5⁄16″ (7.9mm) thick; Bayonet-type knob; Vibration resistant; Military version is designated FHN26G1; Standard plastic nut; Optional metal nut; Cap – 9435-1/2; Neoprene washer – 9732