Salco Products (TE4NYSF01A) 4-Inch Flanged Stainless Steel and Nylon Quick Connect Assembly, Black Nitrile Gasket fits a 4-inch ball valve with four (4) 3/4-inch bolt holes on a 9-inch bolt circle. The quick connect flanged adapter is made out of 316 stainless steel. It features a 4-inch cam groove and 5-1/4-inch -4 Special -2A threads. The 4-inch, quick connect, thread on cap is made out of Nylon 6/6 with a stainless steel hex protector and features 5-1/4-inch -4 UN -2B threads. The 1-inch NPT plug assembly is made out of Nylon 6/6 and features a stainless steel head protector. The plug assembly includes a 3/16-inch, 304 stainless steel, cable assembly. The thread on nylon cap comes with a 3/16-inch by 15-1/2-inch, 18-8 stainless steel, cable assembly, a 4-inch, 18-8 stainless steel, lock ring, a 3/8-inch by 2-inch, 18-8 stainless steel hex bolt, a 3/8-inch, 18-8 stainless steel hex lock nut, and two (2) 3/8-inch SAE, 18-8 stainless steel flat washers. The quick connect assembly is about 8-inches high and comes with a Black Nitrile Gasket for the cap. AAR Approval # E-149523. Approved for DOT Stenciled Cars.