washer half, thrust bronze, 4.375 in.od, 3.516 in. id., 0.198 in.min/0.202 in. max thick, 0.043 in.min/0.052 in.max thk flange, 0.016 in.v groove centrally located on od of flange
0.1875" first hole diameter 1.3750" overall length half moon cut 0.1562 in. radius in one end in line with hole tin alloy outside diameter surface of body surface treated 17c solid, plain, no outside flanges