The B series spherical metal grommet firewall fitting has a 1 inch aluminum ball held in place by 2 stainless steel pressure plates. It has a swivel angle up to 50 degrees from straight and is held to the firewall with 6 #4 screws. Assembly weighs only 1.0oz-1.3oz ( .06lb-.08lb) depending on ball hole size.

This product does NOT meet FAR 23.1191 and AC 20-135 requirements for certified aircraft.

Additional information

Weight .09 oz
Hole Size

0.125, 0.188, 0.240, 0.250, 0.260, 0.312, 0.330, 0.375, 0.438, 0.500, 0.750


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