1900-4A7
View detailed technical data, stock status, and sourcing information for: 1900-4A7
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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 or minus 1 percent on linear outputs. Specified outputs such as sine, cosine, tangent, and the like, 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, wire wound, nonprecision; resistor (1), variable, nonwire wound precision; and resistor (1), variable, wire wound, precision.
0.437 inches nominal single mounting facility thread length, 2a single mounting facility thread class, 2.937 inches nominal overall length, 0.250 inches nominal single actuator first flat length, explosion proof hazardous locations/environmental protection
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 2a single mounting facility
- Thread Length
- 0.437 inches nominal single mounting facility
- Hazardous Locations/Environmental Protection
- explosion proof
- Overall Length
- 2.937 inches nominal
- First Flat Length
- 0.250 inches nominal single actuator
- Flat Height
- 0.216 inches nominal single actuator
- Shaft Diameter
- 0.250 inches nominal single actuator
- Shaft Length
- 0.437 inches nominal single actuator
- Overall Diameter
- 1.000 inches minimum and 1.306 inches maximum
- Nonturn Device Radius
- 0.375 inches nominal at 3:00 o'clock
- Individual Section Quantity
- 4
- Nonturn Device Type
- tab at 3:00 o'clock
- Operating Temp Range
- -65.0 to 85.0 celsius
- Switch Contact Basic Design
- nonpile-up symmetrical
- Pole Quantity
- 1 each section front
- Throw Quantity
- 7 each section rear
- Mounting Method
- threaded bushing single mounting facility
- Nominal Thread Size
- 0.375 inches single mounting facility
- Contact Voltage Rating In Volts
- 115.0 ac at sea level
- Contact Voltage Rating In Volts
- 28.0 dc at sea level
- Shaft Flat/Slot Angular Location
- 195.0 degrees from nonturn device single actuator
- Rotor Through Connection Quantity
- 1 each section
- Switch Actuator Indexing Position Quantity
- 7 single actuator
- Shaft Type
- round, flatted single actuator
- Terminal Type
- tab, solder lug
- Contact Switching Action
- breaks before makes each section rear
- Switch Actuator Positioning Increment
- 36.0 degrees single actuator
- Detent Rotational Torque Range
- +1.000 to 4.500 inch-pounds single actuator
- Switch Actuator Stop Device Type
- fixed stop single actuator
- Contact Load Current Rating
- 75.0 milliamperes resistive load ac at sea level
- Contact Load Current Rating
- 250.0 milliamperes resistive load and 100.0 milliamperes inductive load dc at sea level
- Style Designator
- tap, circular, bushing mount
- Test Data Document
- "81349-mil-s-3786 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", "nominal", etc.)."
- Thread Series Designator
- unef single mounting facility
- Specification/Standard Data
- 81349-mil-s-3786/4 government specification
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5930-00-935-9548 | No Name Available | 04/01/2008 |
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 |
|---|---|
| 1900-4A7 | Rotary Switch |
| 1900M4-7ND | Rotary Switch |
| 2540470-1 | Rotary Switch |
| 42M36-04-1-07N | Rotary Switch |
| 42M36-04-1-7N | Rotary Switch |
| 4M36EB1-4N7 | Rotary Switch |
| 946-091-0004 | Rotary Switch |
| M3786/4-0381 | Rotary Switch |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5930-00-253-4981?
Does the NSN 5930-00-253-4981 have a Schedule B code assigned?
Does NSN 5930-00-253-4981 require demilitarization?
Does NSN 5930-00-253-4981 contain precious materials?
Does NSN 5930-00-253-4981 contain hazardous materials?
When the NSN 5930-00-253-4981 was assigned to the Federal Catalog?
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