MT1H-H251S-12

View detailed technical data, stock status, and sourcing information for: MT1H-H251S-12
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5930 Switches

National Stock Number

5930-01-249-8282

Item Name Code

00451

Assigment Date

02/18/1987 (39 years ago)

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).

watertight hazardous locations/environmental protection, 2.750 inches nominal overall length, 2b all threaded hole thread class, 2.875 inches nominal overall width, 7.312 inches nominal overall height

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2b all threaded hole
Hazardous Locations/Environmental Protection: watertight
Overall Length: 2.750 inches nominal
Overall Height: 7.312 inches nominal
Overall Width: 2.875 inches nominal
Body Height: 3.781 inches nominal
Capillary Tube Length: 144.0 inches nominal
Bulb Length: 4.125 inches nominal
Bulb Diameter: 0.375 inches nominal
Longest Horizontal Distance Between Mounting Centers: 1.906 inches nominal
Longest Vertical Distance Between Mounting Centers: 2.438 inches nominal
Temp Sensing Element Type: capillary tube-bulb
Mounting Method: base and threaded hole
Features Provided: electrical access port
Thread Quantity Per Inch: 32 all threaded hole
Contact Action Stimulus: increase
Nominal Thread Size: 0.164 inches all threaded hole
Mounting Facility Pattern: two position diagonal
Nonpile-Up Contact Arrangement: 1 pole, double throw, one position momentary
Terminal Type: screw
Contact Load Current Rating: 500.0 milliamperes inductive load third voltage
Contact Load Current Rating: 10.0 amperes inductive load first voltage
Contact Load Current Rating: 3.0 amperes inductive load second voltage
Contact Adjustability: actuation point adjustable and deactuation point adjustable
Contact Adjustment Range: +50.00 to 250.00 actuation point degrees fahrenheit and +50.00 to 250.00 deactuation point degrees fahrenheit
Contact Adjustment Type: external actuation point knob with scale and external deactuation point knob with scale
Contact Voltage Rating In Volts: 125.0 ac at sea level first voltage
Contact Voltage Rating In Volts: 24.0 dc at sea level third voltage
Contact Voltage Rating In Volts: 480.0 ac at sea level second voltage
Frequency In Hertz: 60.0 first voltage
Frequency In Hertz: 60.0 second voltage
Media For Which Designed: gas or liquid
Style Designator: rectangular
Thread Series Designator: unc all threaded hole

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
MT1H-H251S-12	Thermostatic Switch

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5930-01-249-8282?

The FSCG of the NSN 5930-01-249-8282 is 5930

Does the NSN 5930-01-249-8282 have a Schedule B code assigned?

Yes, the Schedule B code is 9032100000

Does NSN 5930-01-249-8282 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5930-01-249-8282 contain precious materials?

Item does not contain precious metal.

Does NSN 5930-01-249-8282 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5930-01-249-8282 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Feb 18, 1987