Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D-Z10939 found under Roller Bracket Assembly Hose Ree by Ace Hose Reel Co. The National Stock Number assigned to this part is 4930012518418, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D-Z10939.