Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RDM-820-NF-3W-114 ITEM 53 found under Screw Cap Hexagon H by Metrex Valve Corp. The National Stock Number assigned to this part is 5305013899143, 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 RDM-820-NF-3W-114 ITEM 53.