Model: B3955-2

Pressure Switch

Properties:

Overall Length
4.000 inches
Body Diameter
2.500 inches
Unthreaded Mounting Hole Diameter
0.875 inches
Pressure Switch Type
Gage
Mounting Method
Unthreaded hole
Features Provided
Electrical access port
Thready Qty Per Inch (tpi)
18 single pressure connection
Contact Action Stimulus
Decrease
Thread Size
0.375 inches single pressure connection
Mounting Facility Pattern
Two position in-line
Nonpile-up Contact Arrangement
2 pole, single throw, normally closed, momentary action
Terminal Type
Tab w/screw
Contact Load Current Rating
15.0 amperes resistive load single voltage
Contact Adjustability
Deactuation point not adjustable and actuation point not adjustable
Contact Stimulus Rating
100.00 actuation point pounds per square inch and 120.00 deactuation point pounds per square inch and 20.00 differential point pounds per square inch
Contact Voltage Rating In Volts
110.0 ac at sea level single voltage
Pressure Connector Type
Plain, threaded internal single connection
Frequency In Hertz
60.0 single voltage
Media For Which Designed
Gas
Precious Material And Location
Contacts silver
Precious Material
Silver
Style Designator
Cylindrical
Thread Series Designator
Npt single pressure connection
NSN
5930-00-581-6971
Part Number
B3955-2
Description
Switch,pressure
CAGE
08441

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 B3955-2 NSN 5930-00-581-6971

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:
S
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
8.0000lbs
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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