Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 240-4-93-121-148-176C found under by Wahl Instruments Inc. The National Stock Number assigned to this part is 9905010720443, 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 240-4-93-121-148-176C.