Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HTM-1121 found under Clamp Hose by Hi Temp Insulation Inc. The National Stock Number assigned to this part is 4730012606981, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HTM-1121.