Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WS92139-400X found under Setscrew by Gw Technologies Pty Ltd. The National Stock Number assigned to this part is 5305003642947, 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 WS92139-400X.