Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H3156-3 found under Latch Guide Snapslide Fastener by Hartwell Corporation. The National Stock Number assigned to this part is 5325012570798, 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 H3156-3.