Model: R21SN03-17

Pressure Switch

Properties:

Thread Class
3a single pressure connection
Thread Length
0.282 inches single pressure connection
Overall Length
4.665 inches
Overall Height
2.380 inches
Overall Width
3.067 inches
Longest Horizontal Distance Between Mounting Centers
4.041 inches
Pressure Switch Type
Differential
Operating Tempurature Rating
Between -65.0 degrees fahrenheit and 160.0 degrees fahrenheit
Mounting Method
Bracket
Thready Qty Per Inch (tpi)
20 single pressure connection
Contact Action Stimulus
Increase
Proof Pressure
250.00 pounds per square inch
Thread Size
0.4375 inches single pressure connection
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary
Sensing Element Burst Pressure
400.00 pounds per square inch
Terminal Type
Connector, receptacle
Contact Load Current Rating
4.0 amperes resistive load single voltage
Contact Adjustability
Deactuation point not adjustable and actuation point not adjustable
Contact Stimulus Rating
4.00 differential point pounds per square inch absolute
Contact Voltage Rating In Volts
28.0 dc at sea level single voltage
Pressure Connector Type
Flared, threaded external single connection
Media For Which Designed
Liquid
Thread Series Designator
Unf single pressure connection
NSN
5930-00-171-1306
Part Number
R21SN03-17
Description
Switch,pressure
CAGE
02750

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 R21SN03-17 NSN 5930-00-171-1306

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:
1.4000lbs
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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