Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 843 01 PL REF DES 1A4 found under Electronic Module S by Pivotal Power Inc. The National Stock Number assigned to this part is 5963200018264, and the Federal Supply Class is 5963 Electronic Modules. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 843 01 PL REF DES 1A4.