Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WAV 870 ITEM K23 found under Spacer Ring by Senner Karl Inc. The National Stock Number assigned to this part is 5365013256841, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WAV 870 ITEM K23.