Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CA49921 found under Hose Assembly Nonmetallic by O T S I. The National Stock Number assigned to this part is 4720010281811, 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 CA49921.