Model: 309-21

Pressure Switch

Properties:

Overall Length
2.594 inches
Overall Diameter
2.156 inches
Pressure Switch Type
Differential
Mounting Method
Inlet connection
Thready Qty Per Inch (tpi)
27 single pressure connection
Contact Action Stimulus
Increase
Thread Size
0.125 inches single pressure connection
Nonpile-up Contact Arrangement
1 pole, single throw, normally closed, momentary action
Terminal Type
Threaded stud
Contact Adjustability
Actuation point adjustable, preset
Thread Series Designator
Npt single pressure connection
NSN
5930-00-642-9069
Part Number
309-21
Description
Switch,pressure
CAGE
44940

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 309-21 NSN 5930-00-642-9069

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:
--
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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