Model: 21T4-105

Pressure Switch

Properties:

Thread Class
2b all threaded hole
Inside Diameter
0.138 inches single connection
Overall Length
3.340 inches
Overall Height
1.125 inches
Overall Width
2.200 inches
Body Length
2.640 inches
Distance Between Mounting Facility Centers
0.688 inches
Pressure Switch Type
Gage
Mounting Method
Base and threaded hole
Features Provided
Capillary tube end seal connection
Thready Qty Per Inch (tpi)
32 all threaded hole
Contact Action Stimulus
Increase
Thread Size
0.138 inches all threaded hole
Mounting Facility Pattern
Two position in-line
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary
Terminal Type
Tab w/screw
Contact Load Current Rating
16.0 amperes resistive load first voltage
Contact Load Current Rating
8.0 amperes resistive load third voltage
Contact Load Current Rating
9.2 amperes resistive load second voltage
Contact Adjustability
Deactuation point not adjustable and actuation point not adjustable
Contact Stimulus Rating
7.00 actuation point pounds per square inch gage and -5.00 deactuation point pounds per square inch gage and 12.00 differential point pounds per square inch gage
Contact Voltage Rating In Volts
120.0 ac at sea level first voltage
Contact Voltage Rating In Volts
208.0 ac at sea level second voltage
Contact Voltage Rating In Volts
240.0 ac at sea level third voltage
Pressure Connector Type
Flare, threaded internal single connection
Media For Which Designed
Gas or liquid
Style Designator
Rectangular
Thread Series Designator
Unc all threaded hole
NSN
5930-00-911-9095
Part Number
21T4-105
Description
Switch,pressure
CAGE
94987

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 21T4-105 NSN 5930-00-911-9095

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.5000lbs
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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