Model: A4-18-270

Sensitive Switch

Properties:

Body Style
Bushing mounted
Bushing Length
0.500 inches
Body Length
0.578 inches
Body Width
0.781 inches
Body Height
0.625 inches
Case Material
Plastic
Actuator Style
Round
Actuator Diameter
0.281 inches
Actuator Height
0.359 inches
Actuator Free Position Height
0.359 inches
Maximum Voltage Rating In Volts
250.0 ac and 30.0 dc
Inclosure Type
Fully enclosed
Mounting Method
Threaded bushing
Thready Qty Per Inch (tpi)
32
Thread Size
0.469 inches
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary single switch unit
Switch Release Force
2.0 ounces
Switch Actuating Force
16.0 ounces
Actuator Movement
Between 0.025 pretravel inches and 0.250 overtravel inches and 0.003 differential inches
Contact Load Current Rating At Maximum Rated Voltage
4.000 amperes resistive dc and 2.500 amperes inductive dc and 5.000 amperes resistive ac and 5.000 amperes inductive ac
Thread Series Designator
Uns
Terminal Type And Quantity
3 tab, solder lug
NSN
5930-01-162-4070
Part Number
A4-18-270
Description
Switch,sensitive
CAGE
81640

A switch with a quick-acting mechanism actuated by a highly delicate tactile contact. Includes membrane switch. excludes switch, flexible; switch, pressure; and switch, thermostatic.

Part A4-18-270 NSN 5930-01-162-4070

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00399
FIIG:
A053A0
Concept No.:
App. Key:
S
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:
A
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:
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: 8536509050
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, slide, for a voltage not exceeding 1,000 v

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