Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PYR15-K423 found under Switch Rotary by Bowmar Tic Inc Sub Of Bowmar Ins. The National Stock Number assigned to this part is 5930002203680, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PYR15-K423.