Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H-7-PUT-A-HALT-TO-RUST found under by Elsco International Inc. The National Stock Number assigned to this part is 7930013813351, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like H-7-PUT-A-HALT-TO-RUST.