Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 62D-4C-0040 found under Gage Differential Dial Indicatin by Wika Holding Lp. The National Stock Number assigned to this part is 6685000674803, 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 62D-4C-0040.