Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 549-0142-002 found under Screw Externally Re by Rockwell Collins Inc. The National Stock Number assigned to this part is 5305007775756, 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 549-0142-002.