Model: DA-21-127

Pressure Switch

Properties:

Overall Length
7.250 inches
Overall Height
2.250 inches
Body Diameter
5.750 inches
Pressure Switch Type
Differential
Width Across Flats
0.5625 inches
Mounting Method
Flange and threaded hole
Thready Qty Per Inch (tpi)
18 single pressure connection
Contact Action Stimulus
Increase
Thread Size
0.250 inches single pressure connection
Mounting Facility Pattern
Isosceles triangle
Contact Load Current Rating
3.0 amperes resistive load first voltage
Contact Load Current Rating
10.0 amperes resistive load fourth voltage
Contact Load Current Rating
10.0 amperes resistive load second voltage
Contact Load Current Rating
5.0 amperes resistive load third voltage
Contact Adjustability
Deactuation point adjustable and actuation point adjustable
Contact Adjustment Range
+25.00/+600.00 actuation point pounds per square inch gage and +25.00/+600.00 deactuation point pounds per square inch gage
Contact Adjustment Type
External deactuation point knob and external actuation point knob
Contact Stimulus Rating
25.00 differential point pounds per square inch gage
Contact Voltage Rating In Volts
120.0 ac at sea level second voltage
Contact Voltage Rating In Volts
120.0 dc at sea level fourth voltage
Contact Voltage Rating In Volts
240.0 dc at sea level third voltage
Contact Voltage Rating In Volts
440.0 ac at sea level first voltage
Pressure Connector Type
External seat-gasket seal, threaded external single connection
Media For Which Designed
Gas or liquid
Style Designator
Cylindrical w/port
Thread Series Designator
Npt single pressure connection
NSN
5930-01-020-9807
Part Number
DA-21-127
Description
Switch,pressure
CAGE
39709

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 DA-21-127 NSN 5930-01-020-9807

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

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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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