Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 343-0-001 ITEM NO 21 found under Strapwebbing by Maritime Applied Physics Corporation. The National Stock Number assigned to this part is 5340016939235, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 343-0-001 ITEM NO 21.