Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 546-6138-002 found under Screw Assembly Moun by J F C Electronics Inc. The National Stock Number assigned to this part is 5305008158908, 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 546-6138-002.