Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 10-2A found under Bar Regulator Adjus by H O Trerice Co. The National Stock Number assigned to this part is 4820013076058, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 10-2A.