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These Liquid Level Gages feature a durable Trogamid sight and aluminum alloy base and cap.  The square shank with pipe thread screws vertically into a tapped hole on the top of a reservoir. The leak proof construction, large vent hole and unrestricted passages permit fast and accurate liquid level response. Straight Nylon Gages can be used on oil bearings, gear boxes, crank cases, transformers, switches, or any application requiring visual indication of liquid flow. 

B3641-41216BA1W_12.5 Sight Opening 0.125 MNPT Straight Vented Nylon Gage
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Item #

Sight Opening

Total Height

Mounting Thread

Feature

Body Material

B3641-40116BA1W N/A 1 1/2" N/A 3 3/32" N/A 1/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40116BA2W N/A 1 1/2" N/A 3 5/32" N/A 1/4" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40116BA3W N/A 1 1/2" N/A 3 7/32" N/A 3/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40116BA4W N/A 1 1/2" N/A 3 11/32" N/A 1/2" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40216BA1W N/A 2 1/2" N/A 4 3/32" N/A 1/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40216BA2W N/A 2 1/2" N/A 4 5/32" N/A 1/4" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40216BA3W N/A 2 1/2" N/A 4 7/32" N/A 3/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40216BA4W N/A 2 1/2" N/A 4 11/32" N/A 1/2" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40316BA1W N/A 3 1/2" N/A 5 5/32" N/A 1/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40316BA2W N/A 3 1/2" N/A 5 5/32" N/A 1/4" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40316BA3W N/A 3 1/2" N/A 5 3/32" N/A 3/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40316BA4W N/A 3 1/2" N/A 5 11/32" N/A 1/2" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40416BA1W N/A 4 1/2" N/A 6 3/32" N/A 1/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40416BA2W N/A 4 1/2" N/A 6 5/32" N/A 1/4" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40416BA3W N/A 4 1/2" N/A 6 7/32" N/A 3/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40416BA4W N/A 4 1/2" N/A 6 11/32" N/A 1/2" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40516BA1W N/A 5 1/2" N/A 7 3/32" N/A 1/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40516BA2W N/A 5 1/2" N/A 7 5/32" N/A 1/4" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40516BA3W N/A 5 1/2" N/A 7 7/32" N/A 3/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40516BA4W N/A 5 1/2" N/A 7 11/32" N/A 1/2" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40716BA1W N/A 7 1/2" N/A 9 3/32" N/A 1/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40716BA2W N/A 7 1/2" N/A 11 5/32" N/A 1/4" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40716BA3W N/A 7 1/2" N/A 9 7/32" N/A 3/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40716BA4W N/A 7 1/2" N/A 9 11/32" N/A 1/2" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
B3641-40916BA1W N/A 9 1/2" N/A 11 3/32" N/A 1/8" Male NPT N/A Vertical Installation N/A Nylon, Aluminum Alloy
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