Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7D-16P-35 found under Polygraph Instrument Recording by Astro Med Inc. The National Stock Number assigned to this part is 6695010821142, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7D-16P-35.