#4TL149-3D Aircraft Switch | Switches

4TL149-3D

Toggle Switch

NSN 5930-00-070-1866

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
000701866

Product Features

Weapon system essential

Product Technical Spec.

Body Style:
Bushing mount
Overall Length:
1.340 inches
Overall Height:
Between 2.615 inches and 2.645 inches
Overall Width:
1.660 inches
Bushing Length:
0.470 inches
Body Length:
1.340 inches
Body Width:
1.660 inches
Body Height:
Between 1.085 inches and 1.115 inches
Case Material:
Metal
Actuator Style:
Round
Actuator Diameter:
Between 0.405 inches and 0.435 inches
Actuator Height:
Between 0.775 inches and 0.805 inches
Actuator Position-action Relationship:
Up position maintained and down position maintained
Actuator Position-locking Relationship:
Up position locked in and down position locked in
Maximum Voltage Rating In Volts:
115.0 ac and 28.0 dc
Mounting Surface To Terminal End Distance:
1.370 inches
Inclosure Type:
Fully enclosed
Thready Qty Per Inch (tpi):
32
Thread Size:
0.469 inches
Nonpile-up Contact Arrangement:
4 pole, double throw, both positions maintained single switch unit
Criticality Code Justification:
Feat
Contact Load Current Rating At Maximum Rated Voltage:
20.000 amperes resistive dc and 12.000 amperes inductive dc and 5.000 amperes lamp dc and 15.000 amperes resistive ac and 15.000 amperes inductive ac and 4.000 amperes lamp ac
Test Data Document:
36659-740544-101 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Thread Series Designator:
Uns
Terminal Type And Quantity:
12 screw
NSN:
5930-00-070-1866
Item Name:
Aircraft Switch
Cage Code:
91929

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
740544-101
Cage Code:
98897
RNCC:
3
RNVC:
2
RNAAC:
KE
Status:
A
MSDS:
SADC:
Part Number:
4TL149-3D
Cage Code:
1MQB3
RNCC:
5
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:
Part Number:
4TL149-3D
Cage Code:
4W183
RNCC:
5
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:
Part Number:
4TL149-3D
Cage Code:
5S670
RNCC:
5
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:

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Pricing & Availability

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Switches
--------- Toggle Switches
------------ P/N 4TL149-3D

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Last Updated: 08/11/2025