A31811

A31811 Stepping Switch

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Datasheet. A31811 specification

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

6.500in. ⁓6-1/2"

Overall Height
The distance measured in a straight line from the bottom to the top of an item.

2.125in.

Overall Width
An overall measurement taken at right angles to the length of an item,in distinction from thickness.

4.500in.

Current Type
Indicates the type of current whether alternating,direct,or both.

dc

Mounting Method
The means of attaching the item.

base

Drive Type
Indicates the type of drive for turning,rotating,or positioning the mechanism.

direct

Mounting Configuration
The pattern or arrangement that describes the mounting configuration of the item.

two no. 8/0.190 in./-32 tapped mtg holes diagonally located on 0.193 in. by 5.187 in. mtg centers

Voltage Rating
The value(s) of potential for which the item is rated.

48.0 volts

Control Method
The means by which the item is controlled.

self

Homing Method
The means of restoring the item to a homing position.

through OFF-Normal springs

Bank Level Quantity
The number of bank levels provided.

8

Contact Quantity Per Bank Level
The number of contact/s/ /point/ provided in each bank level.

20

Wiper Contact Quantity Per Bank Level
The number of wiper contacts provided in each bank level.

8

Contact Current Rating
The amount of current for which the contact/s/ was designed.

3.0 amperes

Contact Type
Indicates the type of contact/s/ used.

nonbridging

Nonbridging Level Quantity
The number of nonbridging levels provided.

8

Magnetic Coil Quantity
The number of magnetic coils provided.

1

Coil Type
Indicates the type of coil used.

drive

Operating Current Rating
The operating current for which the item is rated.

440.0 milliamperes

Electrical Resistance
A measurement of the opposition to the flow of direct or alternating current.

19.0 ohms

Auxiliary Off-normal Contact Arrangement
The basic form of the auxiliary off-normal contact arrangement.

1c

Auxiliary Interrupter Contact Arrangement
The basic form of the auxiliary interrupter contact arrangement.

1b

Stepping Direction
An indication of the stepping direction.

unidirectional

Fsc Application Data
The justification for the assignment of a federal supply class /fsc/ to an item based on the classification of the next higher classifiable assembly.

telephone switch stepping

Answers.

What quantity is this sold in?

1EA

What is the overall width?

4.500 inches

What is the NSN for A31811?

5930-00-505-1820

How is this classified for shipping?

Schedule B number: 8536509065
nmfc 061300
Switches, for a voltage not exceeding 1000 volts

What's the federal classification of A31811?

FSC 5930 ⁓ Switches

Excluding switchgear.

NSN 5930-00-505-1820 SWITCH,STEPPING

4.500" overall width 6.500" overall length

NIIN
005051820
NIIN Date
01/01/63
Schedule B
8536509065 
Name Code
26954
FIIG
T142-A
Item Weight
1.900lbs
Item Dimensions
--
QUP
Historical Price
$270.75 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
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. B8072 Cage 00779
2. B8072 Cage 71482
3. SD32 Cage 71482
4. SD32 Cage 00779
5. 200870 Cage 12436
6. 200870-000 Cage 12436
7. 200870 Cage 14100
8. 200870-000 Cage 14100
9. B8072 Cage 58614
10. SD32 Cage 58614
11. 200870-000 Cage 62989

Major End Users Countries and entities

  • - Department of The Army 
  • - Department of The Air Force 
  • - Republic of Korea 
  • - Greece 

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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

A31811 / Switch,steppingWhat is the formal definition of this item?

An electromagnetically actuated switch having contact wipers which are successively rotated over fixed bank contacts. the contact wipers are progressively advanced over the fixed bank contacts through a repetitive series of stepping operations. the stepping operation may be a continuous forward rotation acting through 360 degrees to return to its normal unoperated position or it may be designed to include an electromagnetic and/or mechanical means for releasing and resetting the switch to its released position for a subsequent operation. the contact wipers may be mechanically held in contact with the fixed bank contacts after the armature of the actuating coil has released. the switch may be released at the end of its travel or at any intermediate position. it includes items designed with two electromagnetic actuators that enable the switch to operate in either direction. for items having the dual function of a switch and a relay assembled together on a common mounting, see relay-switch. for other than electromagnetically actuated switches whose contact wipers are manually rotated over fixed bank contacts, see switch, rotary. excludes relay, rotary and switch, telephone (as modified).