Mason and Janco Customer Service
Spares and AOG Support
List of distributors and brokers for commercial spares, airline AOG support, and military spares
To arrange for product returns, please contact us at:
Tel: 818-361-3366, ext. 1357
Email for Mason products: firstname.lastname@example.org
Email for Janco products: email@example.com
Searchable index of component maintenance manuals, service bulletins, and service information letters
Find a sales representative
near you in the US or another country.
Please submit purchase orders for Mason products to firstname.lastname@example.org.
Buy a Janco Series A Rotary Switch
Product request form for
Series A rotary selector switches
13955 Balboa Boulevard
Sylmar, CA 91342