Model: A4-20-103

Sensitive Switch

Properties:

Body Style
Hole mounted
Overall Length
0.781 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
0.375 inches
Overall Height
1.125 inches
Overall Width
0.391 inches
Body Length
0.781 inches
Body Width
0.391 inches
Body Height
0.359 inches
Unthreaded Mounting Hole Diameter
0.088 inches
Actuator Style
Round
Actuator Diameter
0.092 inches
Actuator Free Position Height
0.330 inches
Actuator Adapter Style
Pushbutton
Adapter Bushing Length
0.375 inches
Maximum Voltage Rating In Volts
250.0 ac and 30.0 dc
End Application
Weapon system-missile, minuteman lgm-30
Inclosure Type
Fully enclosed
Mounting Method
Unthreaded hole
Thready Qty Per Inch (tpi)
40
Thread Size
0.250 inches
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary single switch unit
Switch Release Force
4.0 ounces
Switch Actuating Force
16.0 ounces
Actuator Movement
Between 0.030 pretravel inches and 0.005 overtravel inches and 0.004 differential inches
Contact Load Current Rating At Maximum Rated Voltage
4.000 amperes resistive dc and 3.000 amperes inductive dc and 5.000 amperes resistive ac
Thread Series Designator
Uns
Terminal Type And Quantity
3 solder stud
NSN
5930-00-729-8720
Part Number
A4-20-103
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 A4-20-103 NSN 5930-00-729-8720

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:
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:
0.1000lbs
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:
72D
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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