Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HSH-FS-B4012-01 found under Connector Plug Electrical by Hiller Companies Inc The. The National Stock Number assigned to this part is 5935015632860, and the Federal Supply Class is 5935 Connectors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HSH-FS-B4012-01.