Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAS1191E04P5L found under Screw Cap Socket He by Plastic And Metal Products. The National Stock Number assigned to this part is 5305007691412, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NAS1191E04P5L.