Part Number: 12S861-7 (Fitting) Part Number: 12S867-3 (Frame assy,enclosur) Part Number: 12S869-7 (Forging) Part Number: 12S870-9 (Spacer,gun firing p) Part Number: 12S875-17 (Fitt) Part Number: 12S876-33 (Filler) Part Number: 12S876-37 (Plate) Part Number: 12S876-39 (Seal) Part Number: 12S884-9 (Assy) Part Number: 12S887-1 (Seal,molded,cov) Part Number: 12S888-7 (Bracket assy) Part Number: 12S893-11 (Tube,square-expended case bin,ba) Part Number: 12S893T (G.e.) Part Number: 12S896-31 (Insulation assy,wea)