Model: 21ER3

Sensitive Switch
Description:

Hole mounted body style, round actuator style, 0.244 inches actuator diameter, 0.759 inches actuator height, 125.0 ac maximum voltage rating in volts.

Special Features:

Weapon system essential

Properties:

Body Style
Hole mounted
Actuator Style
Round
Actuator Diameter
0.244 inches
Actuator Height
0.759 inches
Actuator Free Position Height
0.759 inches
Housing Height
1.125 inches
Housing Length
3.937 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
125.0 ac and 28.0 dc
End Application
Taircraft stratofortress b-52, stratolifter c135, galaxy c-5, awacs e-3a, engine aircraft tf33-pw-10 (c135e, ec-135h/k/p), engine aircraft tf33-p-3/5/9(c/ec-135, b-52h)engine aircraft tf-33-p-7(c-141a/b) , joint stars target radar system
Inclosure Type
Fully enclosed
Mounting Method
Terminal
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary single switch unit
Switch Release Force
23.0 ounces
Criticality Code Justification
Feat
Switch Actuating Force
50.0 ounces
Actuator Movement
59.0 pretravel degrees and 138.0 overtravel degrees and 5.0 differential degrees
Contact Load Current Rating At Maximum Rated Voltage
15.000 amperes resistive dc and 10.000 amperes inductive dc and 1.000 amperes resistive ac and 1.000 amperes inductive ac
Terminal Type And Quantity
1 connector, receptacle
NSN
5930-00-034-0572
Part Number
21ER3
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 21ER3 NSN 5930-00-034-0572

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:
Y

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

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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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