Model: R6557-22

Pressure Switch

Properties:

Overall Length
5.250 inches
Overall Height
4.094 inches
Overall Width
5.250 inches
Body Diameter
4.062 inches
Unthreaded Mounting Hole Diameter
0.190 inches
Pressure Switch Type
Differential
Mounting Facility Circle Radius
2.312 inches
Mounting Method
Bracket and unthreaded hole
Features Provided
Electrical box connector
Contact Action Stimulus
Decrease
Thread Size
0.250 inches single pressure connection
Mounting Facility Pattern
Three position circular
Nonpile-up Contact Arrangement
2 pole, double throw, one position momentary
Terminal Type
Connector, receptacle
Contact Load Current Rating
10.0 amperes resistive load single voltage
Contact Voltage Rating In Volts
250.0 dc at sea level single voltage
Pressure Connector Type
Plain, threaded internal all connections
Media For Which Designed
Gas or liquid
Style Designator
Cylindrical w/lugs
Thread Series Designator
Npt all pressure connection
NSN
5930-00-503-4490
Part Number
R6557-22
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 R6557-22 NSN 5930-00-503-4490

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:
--
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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