Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KL5281 found under Base Lampholder Dou by Crouse Hinds Electro. The National Stock Number assigned to this part is 6250000561572, and the Federal Supply Class is 6250 Ballasts Lampholders And Starters. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KL5281.