Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4HD312 found under Jaw Fifth Wheel by Oshkosh Corporation. The National Stock Number assigned to this part is 2510011605845, and the Federal Supply Class is 2510 Vehicular Cab Body And Frame Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4HD312.