Model: 157A

Pressure Switch

Properties:

Overall Length
3.840 inches
Overall Height
1.500 inches
Overall Width
1.250 inches
Pressure Switch Type
Gage
Operating Tempurature Rating
Between -65.0 degrees fahrenheit and 275.0 degrees fahrenheit
Mounting Method
Bolt
Thready Qty Per Inch (tpi)
20 single pressure connection
Contact Action Stimulus
Increase
Proof Pressure
4500.00 pounds per square inch
Thread Size
0.4375 inches single pressure connection
Nonpile-up Contact Arrangement
1 two circuit, double break/double make, permanent jumper with no external terminal, both positions maintained
Sensing Element Burst Pressure
7500.00 pounds per square inch
Terminal Type
Connector, receptacle
Contact Load Current Rating
5.0 amperes resistive load single voltage
Contact Adjustability
Deactuation point adjustable and actuation point adjustable
Contact Adjustment Range
+1250.00/+1400.00 actuation point pounds per square inch and +1250.00/+1400.00 deactuation point pounds per square inch
Contact Voltage Rating In Volts
30.0 dc at sea level single voltage
Media For Which Designed
Liquid
Thread Series Designator
Unf single pressure connection
NSN
5930-00-982-2816
Part Number
157A
Description
Switch,pressure
CAGE
13539

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 157A NSN 5930-00-982-2816

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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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