Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PPP-B-1055 CLH-3A found under Barrier Material Waterproofed Fl by General Services Administration. The National Stock Number assigned to this part is 8135002224030, and the Federal Supply Class is 8135 Packaging And Packing Bulk Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PPP-B-1055 CLH-3A.