B-178910

B178910 Thermostatic Switch

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Quality Commitment

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Datasheet. B-178910 specification

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

2.500in. ⁓2-1/2"

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

1.250in.

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

0.812in.

Temp Sensing Element Type
Indicates the type of sensor or transducer used in the item to convert temperature changes to switch actuating force.

internal sensor

Operating Temp Rating
The temperature at which the item operates.

95.0 deg celsius and -273.1 deg celsius

Mounting Method
The means of attaching the item.

base

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

hermetically sealed case

Contact Action Stimulus
An indication of whether the initial action of the contacts occurs as the result of an increase or decrease in stimulus.

increase

Nonpile-up Contact Arrangement
The designation that identifies the electrical configuration of a nonpile-up contact group including the number of switching poles or forms.

1 pole, single throw, normally closed, momentary action

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

wire lead

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 first voltage

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 second voltage

Contact Adjustability
The adjustability of the contact.

actuation point not adjustable

Contact Stimulus Rating
The rating of the stimulus required to actuate and/or deactuate the contact(s).

55.00 actuation point degrees fahrenheit and 54.50 deactuation point degrees fahrenheit

Contact Voltage Rating In Volts
The voltage for which the contact(s) is rated at sea level or at a specified altitude,expressed in volts.

250.0 ac at sea level first voltage

Contact Voltage Rating In Volts
The voltage for which the contact(s) is rated at sea level or at a specified altitude,expressed in volts.

250.0 dc at sea level second voltage

Answers.

What quantity is this sold in?

1EA

What is the overall width?

0.812 inches

What is the NSN for B-178910?

5930-00-259-7960

How is this classified for shipping?

Schedule B number: 9032100000
nmfc 061300
Thermostats

What's the federal classification of B-178910?

FSC 5930 ⁓ Switches

Excluding switchgear.

NSN 5930-00-259-7960 SWITCH,THERMOSTATIC

0.812" overall width 2.500" overall length

NIIN
002597960
NIIN Date
01/01/63
Schedule B
9032100000 
Name Code
00451
FIIG
A048B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$120.28 EA
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

Major End Users Countries and entities

  • - Department of The Navy 

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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

B-178910 / Switch,thermostaticWhat is the formal definition of this item?

A switch that is actuated by changes in ambient temperature. excludes circuit breaker; control, temperature (as modified); fuse (as modified); protector, thermal-overload, electrical motor; relay, thermal; and thermostat, flow control. see also control, temperature (as modified) and regulator, temperature (as modified).