Model: 21ER4

Sensitive Switch
Description:

3.937 inches overall length, 1.984 inches overall height, 2.547 inches overall width, round actuator style, 0.244 inches actuator diameter.

Properties:

Overall Length
3.937 inches
Overall Height
1.984 inches
Overall Width
2.547 inches
Actuator Style
Round
Actuator Diameter
0.244 inches
Actuator Height
0.562 inches
Actuator Free Position Height
0.562 inches
Housing Height
1.125 inches
Housing Length
2.812 inches
Housing Width
2.250 inches
Center To Center Distance Between Housing Mounting Facilities Parallel To Length
2.437 inches
Center To Center Distance Between Housing Mounting Facilities Parallel To Width
1.875 inches
Maximum Voltage Rating In Volts
120.0 dc
Inclosure Type
Fully enclosed
Mounting Method
Terminal
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary single switch unit
Actuator Movement
10.0 differential degrees
Contact Load Current Rating At Maximum Rated Voltage
800.000 milliamperes resistive dc
Terminal Type And Quantity
1 connector, receptacle
NSN
5930-00-034-0571
Part Number
21ER4
Description
Switch,sensitive
CAGE
91929

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 21ER4 NSN 5930-00-034-0571

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:
5.0 X 4.0 X 3.0
Paclk Weight:
0.8000lbs
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

End Items End applications NSN 5930-00-034-0571 is a component of

  • Stratofortress B-52 Aircraft
  • Stratolifter C/kc-135 Aircraft
  • Galaxy C-5 Aircraft
  • E-3a Awacs Aircraft
  • Ec-135h/k/p) Aircraft Tf33-pw-102 (c-135e Engine
  • B-52h) Aircraft Tf33-p-3/5/9 (c/ec-135 Engine
  • Tf-33-p-7 (c-141a/b) Aircraft Engine
  • Joint Stars Target Radar System

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Phone: +1 470-231-0824
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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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