Model: MT4RA28

Sensitive Switch

Special Features:

Weapon system essential

Properties:

Body Style
Hole mounted
Overall Length
1.940 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
Between 0.984 inches and 1.016 inches
Overall Height
1.300 inches
Overall Width
0.687 inches
Body Length
Between 1.922 inches and 1.954 inches
Body Width
Between 0.672 inches and 0.704 inches
Body Height
Between 0.859 inches and 0.891 inches
Case Material
Metal
Unthreaded Mounting Hole Diameter
Between 0.139 inches and 0.142 inches
Actuator Length
0.630 inches
Actuator Style
Leaf
Actuator Width
Between 0.078 inches and 0.110 inches
Actuator Free Position Height
Between 0.610 inches and 0.640 inches
Maximum Voltage Rating In Volts
250.0 ac and 28.0 dc
End Application
Zspruance class dd (963), sturgeon class ssn (637), forrestal class cv, shipboard material handling equipment (mhe), elevators, cargo/weapons, nimitz cvn, los angeles class ssn (688), ticonderoga class cg (47), arleigh burke class ddg
Inclosure Type
Fully enclosed
Mounting Method
Unthreaded hole
Nonpile-up Contact Arrangement
1 pole, double throw, both positions maintained single switch unit
Switch Release Force
5.0 ounces
Criticality Code Justification
Feat
Switch Actuating Force
Between 12.0 ounces and 18.0 ounces
Actuator Movement
Between 0.035 pretravel inches and 0.005 overtravel inches and 0.006 differential inches
Contact Load Current Rating At Maximum Rated Voltage
10.000 amperes resistive dc
Terminal Type And Quantity
3 screw
NSN
5930-00-901-8211
Part Number
MT4RA28
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 MT4RA28 NSN 5930-00-901-8211

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:
--
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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