Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12977P5 found under Lockspring Turnlock Fastener by Bell And Howell Phillipsburg Co. The National Stock Number assigned to this part is 5325002853374, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12977P5.