McMaster 4830K175 Standard Wall 304 304L Stainless Steel Pipe Nipple, Threaded on Both Ends, 1 2 NPT, 3" Long 71215SN2MN00N0C111C1 Product Type Disc Backup Pad Product Type Disc Backup Pad Scratch Resistant Lens Material Polycarbonate Standards ANSI 0000 USMCA Qualifying Yes Material 304 304L Stainless Steel Pipe Size 1 2 Length 3" Pressure Rating Low Pressure Wall Thickness Rating Standard (Schedule 40) Shape Straight Fitting Type Pipe Threading Threaded on Both Ends Fitting Connection NPT Male Construction Welded Connects To Pipe Country of Origin United States DFARS Compliance Specialty Metals COTS Exempt ECCN EAR99 Schedule B Number 730729