'Nipple, Pipe Schedule 40, Welded, Pipe Weld Type Continuous Weld, Pipe Connection Type Threaded on Both Ends, Black Steel, Pipe Size - Nominal 4 In., Overall Pipe Length 10 In., Pipe Thread Type MNPT x MNPT, Max. Pressure 300 psi @ 150 Degrees F, Max. Steam Pressure 150 psi WSP @ 360 Degrees F, Wall Thickness 15/64 In., Inside Dia. 4-1/64 In., Outside Dia. 4-1/2 In., Standards ASTM A-53 Type F, Grade A, ASTM A733'