721856-54

72185654 Thermostatic Switch

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Datasheet. 721856-54 specification

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

2a single threaded bushing

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

0.500in. single threaded bushing ⁓1/2"

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

4.370in. ⁓4-3/8"

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

0.665in.

Body Length
A measurement of the longest dimension of the body,in distinction from width.

4.000in.

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

Width Across Flats
The shortest straight line between flats,perpendicular to the height.

1.000in. ⁓1/64"

Mounting Method
The means of attaching the item.

threaded bushing

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

hermetically sealed case

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

16 single threaded bushing

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

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

0.750in. single threaded bushing ⁓3/4"

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 open, 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.

2.0 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.

5.0 amperes resistive load second voltage

Contact Adjustability
The adjustability of the contact.

deactuation point not adjustable and actuation point not adjustable

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

260.00 actuation point degrees fahrenheit and 236.00 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.

115.0 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.

30.0 dc at sea level second voltage

Media For Which Designed
The type of media for which the item is designed.

gas or liquid

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

cylindrical w/flange

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.

unf single threaded bushing

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Unf single threaded bushing

What is the style?

Cylindrical w/flange

What is the thread quantity per inch?

16 single threaded bushing

What is the thread length?

0.500 inches single threaded bushing

What is the thread class?

2a single threaded bushing

What is the NSN for 721856-54?

5930-00-728-4385

How is this classified for shipping?

Schedule B number: 9032100000
nmfc 061300
Thermostats

What's the federal classification of 721856-54?

FSC 5930 ⁓ Switches

Excluding switchgear.

NSN 5930-00-728-4385 SWITCH,THERMOSTATIC

unf single threaded bushing thread series cylindrical w/flange 16 single threaded bushing thread quantity per inch 4.370" overall length 0.500" single threaded bushing thread length 2a single threaded bushing thread class

NIIN
007284385
NIIN Date
02/16/68
Schedule B
9032100000 
Name Code
00451
FIIG
A048B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$474.00 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

1. 21548-8-5-4 Cage 82647
2. 21548-8-5-2 Cage 82647

Major End Users Countries and entities

  • - Department of The Navy 
  • - Spain 
  • - France 
  • - Italy 

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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

721856-54 / 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).