VCDX18-4N1
View detailed technical data, stock status, and sourcing information for: VCDX18-4N1
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Federal Supply Group
Electrical and Electronic Equipment Components
Federal Supply Classification
5990 Synchros and Resolvers
National Stock Number
5990-00-018-9719
Item Name Code
02071
Assigment Date
04/25/1967 (59 years ago)
A synchro, the rotor of which is mechanically positioned for modifying electrical angular information, received from a transmitter synchro and transmitting to receiver synchro or control transformer synchro electrical information corresponding to the sum or difference of the electrical input angle and its rotor position angle. Does not include variable resistors, goniometers, variable transformers, or items with dials.
1.7450 inches minimum and 1.7500 inches maximum flange diameter, 1.5615 inches minimum and 1.5620 inches maximum shoulder diameter, 0.9370 inches minimum and 0.9375 inches maximum pilot diameter, 3.2100 inches nominal overall length, standard round c body style
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Body Style
- standard round c
- Shoulder Diameter
- 1.5615 inches minimum and 1.5620 inches maximum
- Pilot Diameter
- 0.9370 inches minimum and 0.9375 inches maximum
- Overall Length
- 3.2100 inches nominal
- Flange Diameter
- 1.7450 inches minimum and 1.7500 inches maximum
- Flange Thickness
- 0.0930 inches nominal
- Undercut Diameter
- 1.6250 inches nominal
- Undercut Width
- 0.0780 inches nominal
- Shaft Diameter
- 0.1870 inches minimum and 0.1872 inches maximum single shaft
- Shaft Length
- 0.5400 inches nominal single shaft
- Maximum Temp Rise
- 20.0 celsius
- Body Size
- 18
- Stator Input Voltage Rating In Volts
- 90.0 nominal
- Stator Input Current Rating
- 128.0 milliamperes maximum
- Stator Input Electrical Power Rating
- 950.0 milliwatts nominal
- Frequency In Hertz
- 400.0 nominal
- Zso Impedance Magnitude In Ohms
- 610.00 minimum and 785.00 maximum
- Zso Impedance Angle In Deg
- 83.00 minimum and 86.50 maximum
- Zrs Impedance Magnitude In Ohms
- 76.00 minimum and 110.00 maximum
- Zrs Impedance Angle In Deg
- 40.00 minimum and 55.00 maximum
- Phase Shift Angle In Deg
- 2.000 input to output nominal
- Maximum Fundamental Null Voltage In Millivolts Per Volt
- 40.00 output
- Maximum Total Null Voltage Output In Millivolts Per Volt
- 75.00
- Electrical Error Angular Range In Minutes
- -6.0 to 6.0
- Spline Tooth Quantity
- 21 single shaft
- Torque Gradient Per Angular Deg
- 0.100 inch-ounces maximum
- Alignment Hole Quantity
- 4
- Pilot Length
- 0.0400 inches nominal
- Mounting Surface To Terminal End Distance
- 2.6700 inches nominal
- Spline Tooth Diametral Pitch
- 120 single shaft
- Shaft Thread Series Designator
- unf single shaft
- Shaft Thread Direction
- right-hand single shaft
- Shaft Thread Class
- 2a single shaft
- Body Material
- steel corrosion resisting
- Terminal Location
- rear
- Shaft Thread Length
- 0.2000 inches nominal single shaft
- Shaft Type
- round, slotted single shaft
- Alignment Hole Depth
- 0.1250 inches minimum
- Transformation Ratio
- 1.154 rotor to stator nominal
- Alignment Hole Bolt Circle Diameter
- 1.2500 inches nominal
- Shaft Nominal Thread Size
- 0.190 inches single shaft
- Test Data Document
- "81349-mil-s-20708 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.)."
- Terminal Type And Quantity
- 5 screw
- Specification/Standard Data
- 81349-mil-s-20708/30 government specification
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5990-00-467-1936 | No Name Available | 10/01/1975 |
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 |
|---|---|
| 1.794389 | Differential Transmitter Synchro |
| 18CDX1255 | Differential Transmitter Synchro |
| 18CDX4 | Differential Transmitter Synchro |
| 18CDX4C | Differential Transmitter Synchro |
| AS20708/30 | Differential Transmitter Synchro |
| M20708-30-001 | Differential Transmitter Synchro |
| M20708/30-01C | Differential Transmitter Synchro |
| MIL-S-20708/30 | Differential Transmitter Synchro |
| SAE-AS20708/30 | Differential Transmitter Synchro |
| VCDX18-4N1 | Differential Transmitter Synchro |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5990-00-018-9719?
The FSCG of the NSN 5990-00-018-9719 is 5990
Does the NSN 5990-00-018-9719 have a Schedule B code assigned?
Yes, the Schedule B code is 9014900000
Does NSN 5990-00-018-9719 require demilitarization?
Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).
Does NSN 5990-00-018-9719 contain precious materials?
Precious metal content is unknown
Does NSN 5990-00-018-9719 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5990-00-018-9719 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Tue, Apr 25, 1967
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