Part Number: 143T8543-2 (No description) Part Number: 143T8543-4 (Depressor) Part Number: 143T8543-7 (Depressr) Part Number: 143T8543-8 (Default) Part Number: 143T8554-4 (Shield) Part Number: 143TB (T&b) Part Number: 143TK (Transistor) Part Number: 143-TNB (Locknuts 1 inch conduit fittings) Part Number: 143TTDR5532AA (Component) Part Number: 143U-030 (Hardware) Part Number: 143U030AD2B (Component) Part Number: 143U6609U9 (Retainer) Part Number: 143-V75 (Oring,viton 75 durometer size#14) Part Number: 143-V90 (Oring,viton 90 durometer size#14)