M28788/1-3

M2878813 Pressure Switch

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Datasheet. M28788/1-3 specification

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

3b all pressure connection

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

0.709in. all pressure connection ⁓23/32"

Hazardous Locations/environmental Protection
The specific commercial rating which classes the item as to what degree the item will withstand environmental elements and/or hazardous locations.

dustproof and explosion proof

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

2.500in. and 3.270in. ⁓3-9/32"

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

3.910in.

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

2.400in.

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

2.500in. and 3.270in.

Pressure Switch Type
The general classification of a pressure switch based on the reference method used to measure the sensed pressure.

differential

Operating Temp Rating
The temperature at which the item operates.

32.0 deg fahrenheit and 185.0 deg fahrenheit

Mounting Method
The means of attaching the item.

inlet connection and outlet connection

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.

18 all pressure connection

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

Proof Pressure
The maximum pressure that an item will withstand without resulting in any permanent changes in the structural,mechanical,or electrical characteristics.

150.00 pounds per square inch gage

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

0.562in. single pressure connection ⁓9/16"

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, double throw, one position momentary

Sensing Element Burst Pressure
The pressure at which the pressure sensing element of the item is rendered inoperative by rupture or other permanent physical damage.

300.00 pounds per square inch gage

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

connector, receptacle

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

3.0 amperes inductive load single 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).

0.60 actuation point gallons per minute and 0.40 deactuation point gallons per minute and 0.20 differential point gallons per minute

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.

28.0 dc at sea level single voltage

Pressure Connector Type
Indicates the type of pressure connector.

plain, threaded internal all connections

Test Data Document
The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.

81349-MIL-S-28788 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.) .

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 all pressure connection

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

81349-MIL-S-28788/1 government specification

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Unf all pressure connection

What is the thread quantity per inch?

18 all pressure connection

What is the overall width?

2.400 inches maximum

What is the thread length?

0.709 inches minimum all pressure connection

What is the thread class?

3b all pressure connection

What is the NSN for M28788/1-3?

5930-01-078-1319

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 M28788/1-3?

FSC 5930 ⁓ Switches

Excluding switchgear.

NSN 5930-01-078-1319 SWITCH,PRESSURE

unf all pressure connection thread series 18 all pressure connection thread quantity per inch 2.400" overall width 2.500" overall length 0.709" all pressure connection thread length 3b all pressure connection thread class

NIIN
010781319
NIIN Date
06/09/79
Schedule B
8536509065 
Name Code
00206
FIIG
A048B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$418.25 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. MIL-S-28788/1 Cage 81349

Major End Users Countries and entities

  • - Department of The Navy 
  • - Spain 
  • - 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

M28788/1-3 / Switch,pressureWhat is the formal definition of this item?

A switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. excludes baroswitch; switch, pressure-thermostatic; and switch, sensitive.