Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W292 29 21 found under Hose Nonmetallic by Rolls Royce Marine As Avd Norwinch. The National Stock Number assigned to this part is 4720251502077, 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 W292 29 21.