Pressure Switch

Model / MPN: 644A-3 | NSN: 5930-00-076-0111

A switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. Excludes baroswitch; switch, pressure-thermostatic; and switch, sensitive.

Product Details

NATO Stock Number

5930-00-076-0111

Sold in multiples of

1 EA

DEMIL

Overall Length

3.900 inches

Body Length

3.500 inches

Overall Diameter

1.870 inches

Unthreaded Mounting Hole Diameter

0.210 inches

Pressure Switch Type

Absolute

Mounting Facility Circle Radius

1.500 inches

Mounting Method

Unthreaded hole

Contact Action Stimulus

Increase

Mounting Facility Pattern

Three position circular

Nonpile-up Contact Arrangement

1 pole, double throw, one position momentary

Terminal Type

Threaded stud

Contact Load Current Rating

5.0 amperes resistive load single voltage

Contact Adjustability

Deactuation point not adjustable and actuation point not adjustable

Contact Stimulus Rating

11.20 actuation point pounds per square inch absolute and 0.67 deactuation point pounds per square inch absolute

Contact Voltage Rating In Volts

28.0 dc at altitude single voltage

Media For Which Designed

Gas, liquefied

Style Designator

Cylindrical

644A Series Parts

Pricing and Availability

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ISO 9001:2015 + AS9120B
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644A-3 Cross Reference

8267104-1