Model: 278458

Sensitive Switch

Properties:

Body Style
Hole mounted
Overall Length
2.970 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
1.000 inches
Overall Height
1.438 inches
Overall Width
0.687 inches
Body Length
1.940 inches
Body Width
0.687 inches
Body Height
1.000 inches
Unthreaded Mounting Hole Diameter
0.140 inches
Actuator Length
2.500 inches
Actuator Style
Leaf
Actuator Width
0.190 inches
Actuator Free Position Height
1.078 inches
Maximum Voltage Rating In Volts
460.0 ac and 250.0 dc
Inclosure Type
Fully enclosed
Mounting Method
Unthreaded hole
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary single switch unit
Switch Release Force
0.5 ounces
Switch Actuating Force
2.5 ounces
Actuator Movement
Between 0.328 pretravel inches and 0.219 overtravel inches and 0.007 differential inches and 0.050 differential inches
Contact Load Current Rating At Maximum Rated Voltage
250.000 milliamperes resistive dc and 15.000 amperes resistive ac
Terminal Type And Quantity
3 screw
NSN
5930-00-253-8788
Part Number
278458
Description
Switch,sensitive
CAGE
04627

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 278458 NSN 5930-00-253-8788

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:
--
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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