#49-1957-1B4 Rotary Switch Control | Switches

49-1957-1B4

Rotary Switch

NSN 5930-00-142-8030

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
001428030

Product Technical Spec.

Thread Class:
2a single mounting facility
Thread Length:
0.437 inches single mounting facility
Hazardous Locations/environmental Protection:
Explosion proof
Overall Length:
1.967 inches
First Flat Length:
0.375 inches single actuator
Flat Height:
0.210 inches single actuator
Shaft Diameter:
0.248 inches single actuator and 0.252 inches single actuator
Shaft Length:
0.937 inches single actuator
Overall Diameter:
1.170 inches
Individual Section Quantity:
1
Nonturn Device Type:
Slotted bushing at 3: 00 o'clock
Switch Contact Basic Design:
Nonpile-up symmetrical
Pole Quantity:
2 single section front
Throw Quantity:
4 single section rear
Mounting Method:
Threaded bushing single mounting facility
Thread Size:
0.375 inches single mounting facility
Contact Voltage Rating In Volts:
115.0 ac at sea level
Contact Voltage Rating In Volts:
28.0 dc at sea level
Shaft Flat/slot Angular Location:
180.0 degrees from contact position 1 single actuator
Rotor Through Connection Quantity:
2 single section
Switch Actuator Indexing Position Quantity:
4 single actuator
Shaft Type:
Round, flatted single actuator
Terminal Type:
Tab, solder lug
Contact Switching Action:
Breaks before makes single section rear
Switch Actuator Positioning Increment:
45.0 degrees single actuator
Switch Actuator Stop Device Type:
Fixed stop single actuator
Contact Load Current Rating:
2.0 amperes resistive load ac at sea level
Contact Load Current Rating:
1.0 amperes resistive load dc at sea level
Style Designator:
Tap, circular, bushing mount
Thread Series Designator:
Unef single mounting facility
NSN:
5930-00-142-8030
Item Name:
Switch Control,rotary
Cage Code:
91812

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
47-1957-1-B4
Cage Code:
91812
RNCC:
3
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Switches
--------- Rotary Switches
------------ P/N 49-1957-1B4

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Last Updated: 03/14/2025