Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HSP-1001659 REV A found under Seal Assembly Shaft Spring Loade by Wartsila Lips Inc. The National Stock Number assigned to this part is 4320014972473, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HSP-1001659 REV A.