DUST CAP / bevel seat end cap.
ACME Threads
Fits Nut size is O.D. 4 7/16 inches for 4.0 inch valve
Fits 4 inch butterfly Valves with a threaded bevel seat outlet.
4999-1000-574 CC13H-40 815800
Related Items;
1000-574 - DUST CAP
1000-394 - Hex Nut for 4 inch
1000-387 - Male Bevel Seat Ferrule
