Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R14-100-R03A found under Pressure Regulator by Norgren C A Co. The National Stock Number assigned to this part is 1680016112529, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R14-100-R03A.