Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 121969-50 found under Plug Protective Dust And Moistur by Paterson Limited T A Paterson. The National Stock Number assigned to this part is 5340015940817, 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 121969-50.