Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12-100 found under Tubing Nonmetallic by Liberty Hose And Supply Inc. The National Stock Number assigned to this part is 4720012005624, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12-100.