Model: M4B302

Pressure Switch

Special Features:

High pressure lockout w/internal reset lever (adjustable 100 to 425 psig)

Properties:

Inside Diameter
0.250 inches all connections
Overall Length
5.656 inches
Overall Height
5.000 inches
Overall Width
2.031 inches
Body Height
3.250 inches
Unthreaded Mounting Hole Diameter
0.203 inches
Distance Between Mounting Facility Centers
4.980 inches
Pressure Switch Type
Gage
Mounting Method
Unthreaded hole
Features Provided
Electrical access port
Contact Action Stimulus
Increase
Proof Pressure
325.00 pounds per square inch gage
Thread Size
0.250 inches all pressure connection
Mounting Facility Pattern
Two position in-line
Nonpile-up Contact Arrangement
1 pole, single throw, normally open, momentary action
Terminal Type
Screw
Contact Load Current Rating
20.0 amperes resistive load second voltage
Contact Load Current Rating
10.0 amperes resistive load first voltage
Contact Adjustability
Actuation point adjustable
Contact Adjustment Range
+9.80/+85.00 actuation point pounds per square inch gage
Contact Adjustment Type
External actuation point tongue with scale
Contact Voltage Rating In Volts
120.0 ac at sea level second voltage
Contact Voltage Rating In Volts
240.0 ac at sea level first voltage
Pressure Connector Type
Swivel nut, flare, threaded internal all connections
Media For Which Designed
Gas or liquid
Style Designator
Rectangular
Thread Series Designator
Ptf-sae short all pressure connection
NSN
5930-00-080-4104
Part Number
M4B302
Description
Switch,pressure
CAGE
01002

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.

Part M4B302 NSN 5930-00-080-4104

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00206
FIIG:
A048B0
Concept No.:
1
App. Key:
D
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
7.0 X 7.0 X 3.0
Paclk Weight:
2.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536509065
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, for a voltage not exceeding 1000 volts, nesoi

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