499878-1

4998781 Non Wire Wound Variable Resistor

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Datasheet. 499878-1 specification

Section Quantity
The number of individual elements.

2

Body Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.

cylindrical studs mounted

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

2.000in.

Shaft Diameter
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.

0.125in.

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

1.156in.

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.

round

Actuator Type
Indicates the type of facility or arrangement provided for moving the variable contact(s).

single shaft

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.

0.138in.

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.

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.

32.0

Mounting Facility Quantity
The number of mounting facilities provided.

3

Mounting Method
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.

60.000 ohms c and better industrial clears

Electrical Resistance Per Section
A measure of the opposition to the flow of direct or alternating current per section.

60.000 ohms c and better finish

Power Dissipation Rating Per Section In Watts
The maximum amount of electrical energy that can be expended per section,expressed in watts.

5.0 free air single section

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.

-10.0/+10.0 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.

any acceptable

Standard Taper Curve Per Section
The rate of change and distribution of resistance per section,in relation to the rotation of the control shaft,which establishes a standard taper curve designated by an alphabetic character and accepted for common usage.

a single section

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.

0.216 in. -28Thd tapped hole in shaft for mtg dia knob incl dial endknob graduated from -30 thru 0 to plus 30

Terminal Type And Quantity
Indicates the type and number of terminals for providing electrical connection.

8 tab w/wire lead

Answers.

What quantity is this sold in?

1EA

What is the NSN for 499878-1?

5905-00-644-7625

How is this classified for shipping?

Schedule B number: 8533390080
nmfc 062960
Wirewound variable resistors

What's the federal classification of 499878-1?

FSC 5905 ⁓ Resistors

Excluding resistance wire.

NSN 5905-00-644-7625 RESISTOR,VARIABLE,WIRE WOUND,NON

0.216 in. -28thd tapped hole in shaft for mtg dia knob incl dial endknob graduated from -30 thru 0 to plus 30

NIIN
006447625
NIIN Date
01/01/63
Schedule B
8533390080 
Name Code
37406
FIIG
A002A0
QUP
Historical Price
$18.43 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. 997-3100 Cage 3B150
2. 997-3100 Cage 94404
3. 997-3100 Cage 49956

Major End Users Countries and entities

  • - Italy 

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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)
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 

Similar by Design Other resistors with similar characteristics

Nothing similar to this part number was found in our inventory

499878-1 / Resistor,variable,wire wound,nonWhat 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), if given, of the output is greater than plus of minus 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, precision.