87K Nozzle Body (4.00 in.) is a direct replacement for 019519-1 and 190026-1
Retaining Screw is a direct replacement for 004380-1 and 100056-1. This is also included in the 015866-1
Guide Bushing (End Bell) is a direct replacement for B-1040-2
Check Valve Outlet Poppet is a direct replacement for 005917-1 and 100057-1. This is also included in the 015866-1
Check Valve Assembly is a direct replacement for 010559-3 and 301002-1