Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 557S283NF1A05 found under Adapter by H And H Industries Inc. The National Stock Number assigned to this part is 5935015252393, 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 557S283NF1A05.