Model: 644747-3

Pressure Switch

Properties:

Thread Class
3b single pressure connection
Overall Length
3.400 inches
Overall Diameter
1.870 inches
Pressure Switch Type
Gage
Operating Tempurature Rating
Between -60.0 degrees fahrenheit and 275.0 degrees fahrenheit
Mounting Method
Clamp
Thready Qty Per Inch (tpi)
20 single pressure connection
Contact Action Stimulus
Increase
Proof Pressure
330.00 pounds per square inch gage
Thread Size
0.438 inches single pressure connection
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary
Sensing Element Burst Pressure
500.00 pounds per square inch gage
Terminal Type
Connector, receptacle
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
75.00 actuation point inches of mercury and 67.00 deactuation point inches of mercury and 8.00 differential point inches of mercury
Contact Voltage Rating In Volts
28.0 dc at sea level single voltage
Pressure Connector Type
Plain, threaded internal single connection
Media For Which Designed
Gas or liquid
Style Designator
Cylindrical
Thread Series Designator
Unf single pressure connection
NSN
5930-00-615-2151
Part Number
644747-3
Description
Switch,pressure
CAGE
98897

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 644747-3 NSN 5930-00-615-2151

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:
723
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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