Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HL3251A found under Cup Oil Lubricating by Apache Corp. The National Stock Number assigned to this part is 4730008543799, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HL3251A.