Description HOLDS THE LOCKING DUST CAP / bevel seat end caps. ACME Threads Nut size is O.D. 4.25 inches - I.D. 3.25 inches For 3.0 inch valve STAINLESS STEEL HEXNUT FOR 3 INCH TANK VALVES AND BEVEL SEAT END CAPS. Fits all 3 inch Milk Tank Valves with a threaded bevel seat outlet. 4999-1000-393 CC13H-30 81580009 13H REPLACES MUELLER 9901128 Related Items; 1000-573 - DUST CAP 1000-916 - 3 x 2 stainless steel reducer for bevel seat. Milk Truck fill adapter 1000-917 - 3 x 2 Sunset poly reducer for bevel seat. Milk Truck fill adapter M-8825591 - 3 x 2 Mueller poly reducer for bevel seat. Milk Truck fill adapter 1000-033 - BUNA rubber gasket for 3 inch bevel seat 1000-386 - Male Bevel Seat Ferrule Included in kits; 386-393-363kit Tank Valve adapter kit - Bevel seat to NPT Pipe Thread - 3.0 inch W81580057 Sanitary Stainless Clamp x Male Bevel seat adapter in stock updated March 2026