Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HL 1050PB-5-5 found under Pin Rivet by Peerless Aerospace Fastener. The National Stock Number assigned to this part is 5320008133923, and the Federal Supply Class is 5320 Rivets. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HL 1050PB-5-5.