An item designed to monitor engine vacuum to feather the choke opening in response to engine requirements, preventing stalls and hesitation from over-choking.
NSN 5999-01-447-8877
NSN 2925-00-983-7521
NSN 6145-01-409-0408
NSN 6220-00-339-1310
NSN 5985-01-616-6192
NSN 5950-01-270-5957
NSN 6685-00-578-5951
NSN 5998-01-209-9131
NSN 6685-01-525-6231
NSN 6105-00-444-4418
NSN 5990-01-447-7779
NSN 6620-01-593-8738