Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 537494 found under Cylinder Grip by Holt Company Of Ohio. The National Stock Number assigned to this part is 2590011993101, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 537494.