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Datasheet. MD20-10-10-2748 specification
Section Quantity
The number of individual elements.
The number of individual elements.
2
Body Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.
cylindrical servo mounted
Reliability Indicator
An indication that the level of probability that an item will operate without failure,at a specified rated capability,at a specified temperature,and for a specified period of time,has been established by testing random samples of production lot.
An indication that the level of probability that an item will operate without failure,at a specified rated capability,at a specified temperature,and for a specified period of time,has been established by testing random samples of production lot.
not established
Pilot Diameter
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.
0.7490in. and 0.7500in.
Pilot Length
The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.
The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.
0.0620in.
Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
5.017in. ⁓5-1/32"
Undercut Diameter
1.875in.
Undercut Width
0.0930in.
Body Diameter
The length of a straight line which passes through the center of the body,and terminates at the circumference.
The length of a straight line which passes through the center of the body,and terminates at the circumference.
2.000in.
Angle Of Mounting Hole In Deg
90.0
Angle Between Centerlines Of Mounting Holes In Deg
A measurement of the amount of turning necessary to bring one half into coincidence with another,expressed in degrees.
A measurement of the amount of turning necessary to bring one half into coincidence with another,expressed in degrees.
120.0
Shaft Diameter
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.
0.250in.
Shaft Length
A measurement of the longest dimension of the shaft,in distinction from width.
A measurement of the longest dimension of the shaft,in distinction from width.
0.938in.
Body Length
A measurement of the longest dimension of the body,in distinction from width.
A measurement of the longest dimension of the body,in distinction from width.
4.048in.
Overall Diameter
A measurement of the longest straight line across a circular cross-sectional plane.
A measurement of the longest straight line across a circular cross-sectional plane.
2.640in. ⁓2-41/64"
Mounting Lip Diameter
2.0000in.
Mounting Lip Depth
0.0620in.
Mounting Hole/stud Circle Diameter
1.250in.
Shaft Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the shaft.
The style designation indicating the configuration that most nearly corresponds to the appearance of the shaft.
round
Shaft Bearing Type
Indicates the type of shaft bearing/s/ furnished.
Indicates the type of shaft bearing/s/ furnished.
ball
Actuator Type
Indicates the type of facility or arrangement provided for moving the variable contact(s).
Indicates the type of facility or arrangement provided for moving the variable contact(s).
single shaft
Effective Electrical Rotation In Deg Angular Rotation
That part of the total rotational travel of the actuator that produces a change in output,expressed in degree angular rotation.
That part of the total rotational travel of the actuator that produces a change in output,expressed in degree angular rotation.
3600.0
Maximum Starting Torque
The maximum amount of turning force required to initiate the actuator movement.
The maximum amount of turning force required to initiate the actuator movement.
2.00 INCH-Ounces
Maximum Running Torque
The maximum amount of force requred to maintain actuator movement.
The maximum amount of force requred to maintain actuator movement.
1.50 INCH-Ounces
Maximum Stop Torque
The maximum amount of turning force that can be applied through the operating shaft with0ut damage to the stops.
The maximum amount of turning force that can be applied through the operating shaft with0ut damage to the stops.
480.00 INCH-Ounces
Shaft End Play
The total axial excursion of the shaft measured at the end of the shaft with a specified axial load applied alternately in the opposite directions.
The total axial excursion of the shaft measured at the end of the shaft with a specified axial load applied alternately in the opposite directions.
0.00500in.
Shaft Runout
The eccentricity of the shaft diameter with respect to the rotational axis of the shaft,measured at a specified distance from the end of the shaft,when the body of the item is held fixed and the shaft is rotated with a specified load applied radially to the shaft.
The eccentricity of the shaft diameter with respect to the rotational axis of the shaft,measured at a specified distance from the end of the shaft,when the body of the item is held fixed and the shaft is rotated with a specified load applied radially to the shaft.
0.001in.
Lateral Runout
The perpendicularity of the mounting surface,with respect to the rotational axis of the shaft,and measured on the mounting surface at a specified distance from the outside edge of the mounting surface,when the shaft is held fixed and the body of the item is rotated with specified loads applied radially and axially to the body of the item.
The perpendicularity of the mounting surface,with respect to the rotational axis of the shaft,and measured on the mounting surface at a specified distance from the outside edge of the mounting surface,when the shaft is held fixed and the body of the item is rotated with specified loads applied radially and axially to the body of the item.
0.001in.
Pilot Diameter Runout
The eccentricity of the pilot diameter with respect to the rotational axis of the shaft and measured on the pilot diameter when the shaft is held and the body of the item is rotated while a specified load is applied radially to the body.
The eccentricity of the pilot diameter with respect to the rotational axis of the shaft and measured on the pilot diameter when the shaft is held and the body of the item is rotated while a specified load is applied radially to the body.
0.00100in.
Screw Thread Diameter
The length of a straight line which passes through the center of a coaxial cylinder which would bound the crest of an external thread or the root of an internal thread.
The length of a straight line which passes through the center of a coaxial cylinder which would bound the crest of an external thread or the root of an internal thread.
0.164in.
Screw Thread Series Designator
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unc
Screw Thread Quantity Per Inch
The number of screw threads on the item per linear inch measured on a line parallel to the thread axis,including incomplete threads.
The number of screw threads on the item per linear inch measured on a line parallel to the thread axis,including incomplete threads.
32.0
Mounting Facility Quantity
The number of mounting facilities provided.
The number of mounting facilities provided.
3
Terminal Location
The position of the terminal/s/ for making connection to an item.
The position of the terminal/s/ for making connection to an item.
radially positioned over more than half the circumference
Mounting Method
The means of attaching the item.
The means of attaching the item.
threaded hole
Electrical Resistance Per Section
A measure of the opposition to the flow of direct or alternating current per section.
A measure of the opposition to the flow of direct or alternating current per section.
10.000 kilohms all sections
Tap Location From Ccw Terminal Per Section In Deg Of Effective Electrical Rotation
The location per section,in degrees,of effective electrical rotation between the counterclockwise terminal of a resistor and each tap terminal.
The location per section,in degrees,of effective electrical rotation between the counterclockwise terminal of a resistor and each tap terminal.
300.0 1st section and 550.0 1st section and 800.0 1st section and 1050.0 1st section and 1300.0 1st section and 1550.0 1st section and 1800.0 1st section and 2050.0 1st section and 2300.0 1st section and 2500.0 1st section and 2800.0 1st section and 3050.0 1st section and 3300.0 1st section
Tap Location From Ccw Terminal Per Section In Deg Of Effective Electrical Rotation
The location per section,in degrees,of effective electrical rotation between the counterclockwise terminal of a resistor and each tap terminal.
The location per section,in degrees,of effective electrical rotation between the counterclockwise terminal of a resistor and each tap terminal.
450.0 2nd section and 900.0 2nd section and 1350.0 2nd section and 1800.0 2nd section and 2250.0 2nd section and 2700.0 2nd section and 3150.0 2nd section
Rotary Actuator Travel In Angular Deg
The measurement of the rotary mechanical motion of the actuating shaft of an item,expressed in degrees.
The measurement of the rotary mechanical motion of the actuating shaft of an item,expressed in degrees.
3600.0
Function Conformity Tolerance Per Section
The permissible range per section by which the actual value of resistance or voltage at any specified point may deviate from the theoretical value for the linear or nonlinear function,expressed as a minus and plus percent.
The permissible range per section by which the actual value of resistance or voltage at any specified point may deviate from the theoretical value for the linear or nonlinear function,expressed as a minus and plus percent.
-0.025/+0.025 all sections
Ambient Temp In Deg Celsius Per Section At Zero Percent Rated Power
The ambient temperature at which the power dissipation of each section is derated to zero percent of the full rated power.
The ambient temperature at which the power dissipation of each section is derated to zero percent of the full rated power.
85.0 all sections
Power Dissipation Rating Per Section In Watts
The maximum amount of electrical energy that can be expended per section,expressed in watts.
The maximum amount of electrical energy that can be expended per section,expressed in watts.
5.0 free air all sections
Function Conformity Per Section
The fidelity of the relationship between the actual function characteristics and the theoretical function per section.
The fidelity of the relationship between the actual function characteristics and the theoretical function per section.
all sections independent linearity
Fixed Tap Quantity Per Section
The number of fixed terminals at points between the end terminals that provide connection to the intermediate values of the total value per section.
The number of fixed terminals at points between the end terminals that provide connection to the intermediate values of the total value per section.
13 1st section
Fixed Tap Quantity Per Section
The number of fixed terminals at points between the end terminals that provide connection to the intermediate values of the total value per section.
The number of fixed terminals at points between the end terminals that provide connection to the intermediate values of the total value per section.
7 2nd section
Tap Location Tolerance Per Section
The limits of permissible variation from the rated value of the location of a tap per section.
The limits of permissible variation from the rated value of the location of a tap per section.
-0.5/+0.5 deg angular rotation all sections
Resistance Tolerance Per Section In Percent
The limits of permissible variation in the electrical resistance value per section of an item from its rated value,expressed in percent.
The limits of permissible variation in the electrical resistance value per section of an item from its rated value,expressed in percent.
-0.5/+0.5 all sections
Actuator Travel Control Feature
The feature that controls the actuator travel.
The feature that controls the actuator travel.
stops
Function Characteristic Per Section
The specified mathematical relation per section between the terminal resistance,or output ratio,and the rotation of the actuator.
The specified mathematical relation per section between the terminal resistance,or output ratio,and the rotation of the actuator.
all sections linear
Temp Coefficient Of Resistance Wire Per Section In Ppm Per Deg Celsius
A constant that represents the proportionate change in resistance of the wire per section of which the resistance element of a resistor is wound,expressed in parts per million per degree celsius.
A constant that represents the proportionate change in resistance of the wire per section of which the resistance element of a resistor is wound,expressed in parts per million per degree celsius.
-25.0/+25.0 all sections
Ambient Temp In Deg Celsius Per Section At Full Rated Power
The ambient temperature,expressed in degrees celsius,of the medium surrounding each section at which it can be operated continuously at full rated power.
The ambient temperature,expressed in degrees celsius,of the medium surrounding each section at which it can be operated continuously at full rated power.
40.0 all sections
Terminal Type And Quantity
Indicates the type and number of terminals for providing electrical connection.
Indicates the type and number of terminals for providing electrical connection.
26 turret
Answers.
How is this classified for shipping?
Schedule B number: 8533390080
nmfc 062960
Wirewound variable resistors
What's the federal classification of MD20-10-10-2748?
FSC 5905 ⁓ Resistors
Excluding resistance wire.
NSN 5905-00-707-0793 RESISTOR,VARIABLE,WIRE WOUND,PRE
5.017" overall length
- NIIN
- 007070793
- NIIN Date
- 01/01/61
- Schedule B
- 8533390080
- Name Code
- 37408
- FIIG
- A002A0
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- 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. | 437155 | Cage 1PQF4 |
| 2. | 437155 | Cage 36378 |
| 3. | 437155 | Cage 1PQF4 |
| 4. | 437155 | Cage 36378 |
Availability for MD20-10-10-2748 A member of our team will provide you with a price and availability quote
Request a Quote »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)
- Communications/electronics, other than sigint/ew or comsec repair parts and components
- NMFC (national motor freight code)
- 062960 REOSTATS/PARTS NOI
- UFC (universal freight code)
- 35140
Similar by Design Other resistors with similar characteristics
Nothing similar to this part number was found in our inventory
MD20-10-10-2748 / Resistor,variable,wire wound,preWhat is the formal definition of this item?
A resistor in which a sliding or rolling contact moves over an exposed area of the resistive element to change the ohmic value of the output. the functional tolerance (linearity) of the output is equal to or less than plus or munus 1 percent on linear outputs. specified outputs such as sine, cosine, tangent, etc., shall be considered to be precision. for items having manually positioned taps designed to be set and fixed prior to use, see resistor, adjustable, for items with step by step variation, see rheostat and resistor, step by step. for tandem-mounted items designed to function together as an attenuator (and rated accordingly), see attenuator, variable. excludes resistor (1), variable, nonwire wound, nonprecision; resistor (1), variable, nonwire wound, precision; and resistor (1), variable, wire wound, nonprecision.
