Used to test aircraft pitot; airspeed, climb, and dive
NSN 5999-01-145-4096
NSN 6240-01-526-1674
NSN 5895-01-571-9755
NSN 5935-00-657-1527
NSN 4140-01-216-7107
NSN 6610-01-484-8980
NSN 4140-01-224-7662
NSN 5905-01-567-5947
NSN 5930-01-128-3238
NSN 6685-01-107-4571
NSN 5895-01-541-0751
NSN 5990-01-187-8050