Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SH250-40 00 found under Hosenonmetallic by Alaska Rubber And Supply. The National Stock Number assigned to this part is 4720016954495, 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 SH250-40 00.