Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S4127 PIECE 64 found under Pawl by Ruggles Klingemann Mfg Co. The National Stock Number assigned to this part is 3040011954479, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S4127 PIECE 64.