Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y00R3981 FIG 37 REF 28 found under Hose Nonmetallic by Yanmar Diesel Engine Co Ltd. The National Stock Number assigned to this part is 4720014321480, 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 Y00R3981 FIG 37 REF 28.