KM-2-18

KM218 Thermostatic Switch

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Datasheet. KM-2-18 specification

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

2b all threaded hole

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

2.953in. ⁓2-61/64"

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

1.656in.

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

2.485in.

Capillary Tube Length
A measurement of the longest dimension of a capillary tube.

18.0in.

Bulb Length
A measurement of the longest dimension of a bulb.

14.875in. and 16.875in.

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

0.188in.

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

capillary TUBE-Bulb

Mounting Method
The means of attaching the item.

bracket and threaded hole

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

32 single threaded hole

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.

0.112in. all threaded hole ⁓1/8"

Mounting Facility Pattern
The general configuration and relative position of the facilities provided for mounting the item.

two position IN-Line

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, both positions maintained

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

tab w/screw

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

20.0 amperes resistive load fourth voltage

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

22.5 amperes resistive load third voltage

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

25.0 amperes resistive load second voltage

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

27.0 amperes resistive load first voltage

Contact Adjustability
The adjustability of the contact.

actuation point adjustable

Contact Adjustment Range
The minimum and maximum limits to which the contact(s) may be adjusted.

+0.00/+800.00 actuation point degrees fahrenheit

Contact Adjustment Type
Indicates the type of device provided for manual adjustment of the contact(s).

external actuation point shaft with scale

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.

208.0 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.

240.00 ac at sea level second 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.

277.0 ac at sea level third 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.

480.0 ac at sea level fourth voltage

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

switch has dial with a rotation arc of 31o deg which fits over flatted shaft 0.938 in. lg, 0.250 in. dia requiring min 10 in. oz torque to turn out of off position

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

gas

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.

unc all threaded hole

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Unc all threaded hole

What is the thread quantity per inch?

32 single threaded hole

What is the overall width?

2.485 inches

What is the thread class?

2b all threaded hole

What is the NSN for KM-2-18?

5930-00-110-7676

How is this classified for shipping?

Schedule B number: 9032100000
nmfc 061300
Thermostats

What's the federal classification of KM-2-18?

FSC 5930 ⁓ Switches

Excluding switchgear.

NSN 5930-00-110-7676 SWITCH,THERMOSTATIC

unc all threaded hole thread series switch has dial with a rotation arc of 31o deg which fits over flatted shaft 0.938 in. lg, 0.250 in. dia requiring min 10 in. oz torque to turn out of off position 32 single threaded hole thread quantity per inch 2.485" overall width 2.953" overall length 2b all threaded hole thread class

NIIN
001107676
NIIN Date
08/09/68
Schedule B
9032100000 
Name Code
00451
FIIG
A048B0
Item Weight
0.100lbs
Item Dimensions
--
QUP
Historical Price
$232.80 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. 20A2S-39 Cage 78770
2. 2A2S-39 Cage 78770
3. 5300-507 Cage 77857

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Air Force 
  • - U.s. Coast Guard 

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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

KM-2-18 / 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).