Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B1900-1429 found under Latch Guide Snapslide Fastener by Simmons Fastener Corp. The National Stock Number assigned to this part is 5325011557493, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B1900-1429.