Model: 1283-4

Pressure Switch

Properties:

Thread Class
3b single pressure connection
Thread Length
0.594 inches single pressure connection
Overall Length
3.550 inches
Body Diameter
1.500 inches
Body Length
Between 2.200 inches and 2.260 inches
Overall Diameter
1.900 inches
Unthreaded Mounting Hole Diameter
Between 0.190 inches and 0.210 inches
Pressure Switch Type
Gage
Mounting Facility Circle Radius
0.560 inches
Mounting Method
Flange and unthreaded hole
Thready Qty Per Inch (tpi)
20 single pressure connection
Contact Action Stimulus
Increase
Proof Pressure
330.00 pounds per square inch gage
Thread Size
0.437 inches single pressure connection
Mounting Facility Pattern
Four position circular
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary
Terminal Type
Connector, receptacle
Contact Load Current Rating
3.0 amperes resistive load single voltage
Contact Adjustability
Deactuation point not adjustable and actuation point not adjustable
Contact Stimulus Rating
8.00 actuation point pounds per square inch gage and 7.00 deactuation point pounds per square inch gage and 1.00 differential point pounds per square inch gage
Contact Voltage Rating In Volts
30.0 dc at sea level single voltage
Pressure Connector Type
Gasket seal, threaded internal single connection
Media For Which Designed
Liquid
Style Designator
Cylindrical
Thread Series Designator
Unf single pressure connection
NSN
5930-00-156-3612
Part Number
1283-4
Description
Switch,pressure
CAGE
98505

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 1283-4 NSN 5930-00-156-3612

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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
77.5
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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