M4008-20

Pressure Switch

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.

2.000 inches nominal overall length, 27 single pressure connection thread quantity per inch, input port mounting method, 1.690 inches nominal overall diameter, gage pressure switch type

Basic Details

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NSN

5930-00-976-1483

NIIN

00-976-1483

Item Name

Pressure Switch

Part Number

M4008-20

Active

Federal Supply Class

5930 - Switches

Federal Supply Group

Electrical and Electronic Equipment Components

Assigment Date

02/27/1970 (56 years ago)

Item Name Code

00206

Technical Specifications

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Overall Length: 2.000 inches nominal
Overall Diameter: 1.690 inches nominal
Pressure Switch Type: gage
Mounting Method: input port
Thread Quantity Per Inch: 27 single pressure connection
Contact Action Stimulus: increase
Proof Pressure: 300.00 pounds per square inch
Nominal Thread Size: 0.125 inches single pressure connection
Nonpile-Up Contact Arrangement: 1 pole, single throw, normally open, momentary action
Terminal Type: tab w/screw
Contact Load Current Rating: 4.0 amperes resistive load third voltage
Contact Load Current Rating: 8.0 amperes resistive load second voltage
Contact Load Current Rating: 15.0 amperes resistive load first voltage
Contact Adjustability: actuation point not adjustable and deactuation point not adjustable
Contact Stimulus Rating: 20.00 actuation point nominal pounds per square inch and 15.00 deactuation point nominal pounds per square inch and 5.00 differential point nominal pounds per square inch
Contact Voltage Rating In Volts: 12.0 dc at sea level second voltage
Contact Voltage Rating In Volts: 24.0 dc at sea level third voltage
Contact Voltage Rating In Volts: 6.0 dc at sea level first voltage
Pressure Connector Type: flared, threaded external single connection
Media For Which Designed: gas or liquid
Precious Material And Location: contacts silver
Precious Material: silver
Thread Series Designator: npt single pressure connection

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Cross Referenced Parts

Our Cross-Referenced Parts section helps you quickly locate compatible or equivalent aerospace electrical components for: M4008-20

Part Number	CAGE	Manufacturer	RNCC	RNVC	RNAAC
02261-0147	93568	Harsco Corp Bmy-Combat Systems Div	5	9	TX
3575001	12886	Sierra Detroit Diesel Allison Dba Stewart & Stevenson	5	9	HD
65A81C147	30003	Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier	3	2	TX
76052-20PSI	74400	Hobbs Corp	5	9	ZZ
M-4008-20PSI	57733	Stewart-Warner Corporation	5	9	TX
M-4008-20PSI	74400	Hobbs Corp	5	9	TX
M4008-20	74400	Hobbs Corp	5	9	TX

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