The Resolver,electrical, cataloged under National Stock Number 5990-00-033-7855, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is General Dynamics Motion Control Llc. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-033-7855 |
| Primary Part Number | VRG-23/38-6A |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | General Dynamics Motion Control Llc |
| Status | ACTIVE |
| Body Size | 23 |
| Shaft Type | ROUND SINGLE SHAFT |
| Body Diameter | 1.9900 INCHES MAXIMUM IN |
| Flange Diameter | 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN |
| Shaft Diameter | 0.2395 INCHES MINIMUM AND 0.2405 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 415.00 NOMINAL |
| Length | 0.4120 INCHES MINIMUM AND 0.4220 INCHES MAXIMUM SHOULDER IN |
| Body Style | STANDARD ROUND D |
| Shaft Radial Play Determining Weight | 8.0 OUNCES OZ |
| Flange Thickness | 0.2480 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Aft of First Flange Diameter | 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN |
| Phase Shift Angle in Deg | 9.000 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 3.4450 INCHES NOMINAL IN |
| Frequency in Hertz | 20.0 NOMINAL |
| Zro Resistance in Ohms | 580.00 NOMINAL |
| Plus J Zso Reactance in Ohms | 1400.00 NOMINAL |
| Zrs Resistance in Ohms | 140.00 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 5.0 NOMINAL |
| Shaft End Play Determining Weight | 16.0 OUNCES OZ |
| Shaft Maximum Radial Play | 0.0010 INCHES IN |
| Shaft Length | 1.0780 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.5900 INCHES MINIMUM AND 0.6000 INCHES MAXIMUM IN |
| Second Shoulder Length | 0.1700 INCHES NOMINAL IN |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 30.00 INPUT |
| Shoulder Diameter | 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 60.00 |
| Plus J Zro Reactance in Ohms | 1630.00 NOMINAL |
| Transformation Ratio | 0.485 ROTOR TO STATOR NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| VRG-23/38-6A | General Dynamics Motion Control Llc (USA) |
| Reference | Meaning |
|---|---|
| 8180000052 | 3/9 Design control — primary reference Navcom Defense Electronics, Inc. |
NSN 5990-00-033-7855 is a Resolver,electrical, manufactured by General Dynamics Motion Control Llc, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-033-7855 has 1 manufacturer part number on file: VRG-23/38-6A (General Dynamics Motion Control Llc).
Key specifications for VRG-23/38-6A: Body Size: 23; Shaft Type: ROUND SINGLE SHAFT; Body Diameter: 1.9900 INCHES MAXIMUM IN; Flange Diameter: 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN. 29 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.