Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HL412VAP10-4 found under High Lock Fastener by Sps Technologies Inc. The National Stock Number assigned to this part is 5315016024415, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HL412VAP10-4.