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 5925-00-104-8540
NSN 5895-01-206-6542
NSN 5990-00-503-4724
NSN 6645-01-261-0056
NSN 6105-01-463-8557
NSN 5915-00-968-4871
NSN 6220-01-445-2232
NSN 7035-00-929-0363
NSN 6145-01-305-3898
NSN 5920-01-610-6827
NSN 4140-00-837-2658
NSN 6685-00-994-6120