47-1957

471957 Rotary Switch
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Datasheet. 47-1957 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

2a single mounting facility

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.187in. single mounting facility ⁓3/16"

Hazardous Locations/environmental Protection
The specific commercial rating which classes the item as to what degree the item will withstand environmental elements and/or hazardous locations.

vibration resistant and watertight

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

2.740in. ⁓2-3/4"

First Flat Length

0.380in. single actuator

Flat Height

0.211in. single actuator and 0.221in. single actuator

Shaft Diameter
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.

0.248in. single actuator and 0.251in. single actuator

Shaft Length
A measurement of the longest dimension of the shaft,in distinction from width.

0.433in. single actuator

Overall Diameter
A measurement of the longest straight line across a circular cross-sectional plane.

1.320in. ⁓1-21/64"

Individual Section Quantity
The number of individual sections included in the item.

4

Nonturn Device Type
Indicates the type of device used to prevent physical movement of the item on its mounting surface.

flatted bushing at 12:00 o'clock

Operating Temp Range
The minimum and maximum limits of temperature at which the item is rated for operation.

-65.0/+125.0 deg celsius

Switch Contact Basic Design
The general configuration of the contacts of a switch that describes its basic switching structure.

NONPILE-Up symmetrical

Pole Quantity
The number of poles included in the item.

1 each section front

Throw Quantity
The number of positions to which the item may be actuated to energize electrical circuits.

6 each section rear

Mounting Method
The means of attaching the item.

threaded bushing w/panel seal single mounting facility

Features Provided
Those features,not otherwise specified,which may be required for proper functioning of the item.

rfi shielding

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.375in. single mounting facility ⁓3/8"

Contact Voltage Rating In Volts
The voltage for which the contacts are rated,expressed in volts.

115.0 ac at sea level

Contact Voltage Rating In Volts
The voltage for which the contacts are rated,expressed in volts.

28.0 dc at sea level

Rotor Through Connection Quantity
Indicates the number of connections on a rotor segment that are front to rear surface connected.

1 each section

Switch Actuator Indexing Position Quantity
The number of positions to which the switch actuator may be indexed.

6 single actuator

Shaft Type
Indicates the type of shaft included on the item.

round, flatted single actuator

Terminal Type
Indicates the type of terminal for providing electrical connection to the item.

tab, solder lug

Contact Switching Action
An indication of the switching action by the contacts of the item.

breaks before makes 1st section rear

Contact Switching Action
An indication of the switching action by the contacts of the item.

breaks before makes 3rd section rear

Contact Switching Action
An indication of the switching action by the contacts of the item.

breaks before makes 2nd section rear

Contact Switching Action
An indication of the switching action by the contacts of the item.

makes before breaks 4th section rear

Switch Actuator Positioning Increment
The increments of angular rotation that the switch actuator moves between adjacent index positions.

30.0 degrees single actuator

Switch Actuator Stop Device Type
Indicates the type of device included in the switch to limit the angular rotation of its actuator.

fixed stop single actuator

Contact Load Current Rating
The amount of current that the contacts are rated to make or break with a specified load.

1.0 amperes resistive load ac at sea level

Contact Load Current Rating
The amount of current that the contacts are rated to make or break with a specified load.

1.0 amperes resistive load dc at sea level and 250.0 milliamperes inductive load dc at sea level

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

tap, circular, bushing mount

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unef single mounting facility

Answers.

What class is the thread series?

Unef single mounting facility

What is the style?

Tap, circular, bushing mount

What is the thread length?

0.187 inches single mounting facility

What is the thread class?

2a single mounting facility

What is the NSN for 47-1957?

5930-00-228-4497

How is this classified for shipping?

Schedule B number: 8536509020
nmfc 061300
Switches, rotary, rated at not over 5 a, for a voltage not exceeding 1,000 v

What's the federal classification of 47-1957?

FSC 5930 ⁓ Switches

Excluding switchgear.

NSN 5930-00-228-4497 SWITCH,ROTARY

unef single mounting facility thread series tap, circular, bushing mount 2.740" overall length 0.187" single mounting facility thread length 2a single mounting facility thread class

NIIN
002284497
NIIN Date
02/17/69
Schedule B
8536509020 
Name Code
02134
FIIG
A052B0
Item Weight
0.000lbs
Item Dimensions
--
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. 721844-7 Cage 05869

Major End Users Countries and entities

  • - Singapore 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
77.5 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps) 
Commodity (for shipments via water)
Electrical appliances, small 
NMFC (national motor freight code)
061300 CIRCUIT BREAKER/SWITCH NOI 
UFC (universal freight code)
34410 

Similar by Design Other switchs with similar characteristics

Nothing similar to this part number was found in our inventory

47-1957 / Switch,rotaryWhat is the formal definition of this item?

A switch actuated by a definite angular rotation of the switch shaft about its axis. for items having rated actuation travel and pressure characteristics, see switch, sensitive. excludes relay, rotary; switch, stepping; and switch, telephone (as modified).