251743-LK8
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A switch actuated by a definite angular rotation of the switch shaft about its axis. It consists of a body,switch and a control,rotary switch. For items having rated actuation travel and pressure characteristics, see switch,sensitive. Excludes relay,rotary; switch,stepping; and switch,telephone (as modified).
6.408 inches nominal overall length, 0.375 inches nominal single mounting facility thread length, 1.843 inches nominal overall height, 1.718 inches nominal overall width, 2a single mounting facility thread class
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
- 0.375 inches nominal single mounting facility
- Overall Length
- 6.408 inches nominal
- Overall Height
- 1.843 inches nominal
- Overall Width
- 1.718 inches nominal
- First Flat Length
- 0.312 inches nominal single actuator
- Flat Height
- 0.216 inches nominal single actuator
- Shaft Diameter
- 0.250 inches nominal single actuator
- Shaft Length
- 0.938 inches nominal single actuator
- Nonturn Device Radius
- 0.531 inches nominal at 1:30 o'clock
- Individual Section Quantity
- 8
- Nonturn Device Type
- tab at 1:30 o'clock
- Operating Temp Range
- -65.0 to 85.0 celsius
- Switch Contact Basic Design
- nonpile-up symmetrical
- Pole Quantity
- 1 each section rear
- Throw Quantity
- 18 each section rear
- Mounting Method
- threaded bushing single mounting facility
- Nominal Thread Size
- 0.375 inches single mounting facility
- Contact Voltage Rating In Volts
- 110.0 ac at sea level
- Contact Voltage Rating In Volts
- 28.0 dc at sea level
- Shaft Flat/Slot Angular Location
- 180.0 degrees from nonturn device single actuator
- Switch Actuator Indexing Position Quantity
- 18 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
- 20.0 degrees single actuator
- Detent Rotational Torque Range
- +2.000 to 6.000 inch-pounds single actuator
- Contact Load Current Rating
- 500.0 milliamperes resistive load ac at sea level
- Contact Load Current Rating
- 1.0 milliamperes resistive load dc at sea level
- Style Designator
- circular wafer, bushing mount
- Thread Series Designator
- unef single mounting facility
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 |
|---|---|
| 251743-LK8 | Rotary Switch |
| 77C707986-1 | Rotary Switch |
| 77C707986P001 | Rotary Switch |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5930-00-078-1781?
Does the NSN 5930-00-078-1781 have a Schedule B code assigned?
Does NSN 5930-00-078-1781 require demilitarization?
Does NSN 5930-00-078-1781 contain precious materials?
Does NSN 5930-00-078-1781 contain hazardous materials?
When the NSN 5930-00-078-1781 was assigned to the Federal Catalog?
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