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Datasheet. 257456 specification
The number of individual elements.
1
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.
cylindrical bushing mounted
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
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
2.922in. ⁓2-59/64"
The length of a straight line which passes through the center of the body,and terminates at the circumference.
1.875in.
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.
0.250in.
A measurement of the longest dimension of the shaft,in distinction from width.
0.812in.
0.375in.
A measurement of the longest dimension of the body,in distinction from width.
2.094in.
A measurement of the longest straight line across a circular cross-sectional plane.
2.313in. ⁓2-21/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the shaft.
round
Indicates the type of shaft bearing/s/ furnished.
sleeve
Indicates the type of facility or arrangement provided for moving the variable contact(s).
single shaft
That part of the total rotational travel of the actuator that produces a change in output,expressed in degree angular rotation.
3600.0
The maximum amount of turning force required to initiate the actuator movement.
2.00 INCH-Ounces
The maximum amount of force requred to maintain actuator movement.
1.50 INCH-Ounces
Indicates the location of a mechanical device which prevents the turning of the item on its mounted surface,expressed by the twelve hour clock designation.
at 12 oclock
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.
0.375in.
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.
unef
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
The position of the terminal/s/ for making connection to an item.
longitudinally positioned on the circumference
The means of attaching the item.
standard bushing
A measure of the opposition to the flow of direct or alternating current per section.
100.000 kilohms single section
The location per section,in degrees,of effective electrical rotation between the counterclockwise terminal of a resistor and each tap terminal.
1850.0 single section and 1920.0 single section and 2070.0 single section and 2160.0 single section
The measurement of the rotary mechanical motion of the actuating shaft of an item,expressed in degrees.
3600.0
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.
-0.10/+0.10 single section
The ambient temperature at which the power dissipation of each section is derated to zero percent of the full rated power.
80.0 single section
The maximum amount of electrical energy that can be expended per section,expressed in watts.
7.0 free air single section
The fidelity of the relationship between the actual function characteristics and the theoretical function per section.
single section independent linearity
The number of fixed terminals at points between the end terminals that provide connection to the intermediate values of the total value per section.
4 single section
The limits of permissible variation from the rated value of the location of a tap per section.
-1.0/+1.0 deg angular rotation single section
The limits of permissible variation in the electrical resistance value per section of an item from its rated value,expressed in percent.
-1.0 to 1.0 single section
The feature that controls the actuator travel.
clutch
The specified mathematical relation per section between the terminal resistance,or output ratio,and the rotation of the actuator.
single section linear
The ambient temperature,expressed in degrees celsius,of the medium surrounding each section at which it can be operated continuously at full rated power.
25.0 single section
Indicates the type and number of terminals for providing electrical connection.
7 tab, solder lug
Answers.
Schedule B number: 8533400080
nmfc 062960
Variable resistors, including potentiometers
FSC 5905 ⁓ Resistors
Excluding resistance wire.
NSN 5905-00-049-6243 RESISTOR,VARIABLE,NONWIRE WOUND,
2.922" overall length
- NIIN
- 000496243
- NIIN Date
- 11/10/72
- Schedule B
- 8533400080
- Name Code
- 37407
- FIIG
- A002A0
- 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
Major End Users Countries and entities
- - France
Availability for 257456 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)
- 77.5
- 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)
- 062960 REOSTATS/PARTS NOI
- UFC (universal freight code)
- 35140
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257456 / Resistor,variable,nonwire wound,What 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 finctional tolerance (linearity) of the output is equal to or less than plus or minus 1 percent on linear outputs. specified outputs such as sine, cosine, tangent, etc., shall be considered to be precision. for items having manually postioned taps designed to be set and fixed prior to use, see resistor, adjustable. for items with step by step variation, see rehostat 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, wire wound, nonprecision; resistor (1), variable nonwire wound, nonprecision; and resistor (1), variable, wire wound, precision.
