The Resolver,electrical, cataloged under National Stock Number 5990-01-178-6307, 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 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-178-6307 |
| Primary Part Number | RP22-4E |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | General Dynamics Motion Control Llc |
| Status | ACTIVE |
| Body Size | 22 |
| Body Diameter | 2.1995 INCHES MINIMUM AND 2.2000 INCHES MAXIMUM IN |
| Body Style | PICK-OFF A |
| Terminal Location | SIDE |
| Terminal Type and Quantity | 6 WIRE LEAD |
| 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 |
|---|---|
| RP22-4E PRIMARY | General Dynamics Motion Control Llc (USA) |
| Reference | Meaning |
|---|---|
| VR22-4E | C/1 Advisory reference — outside the item-of-supply concept General Dynamics Motion Control Llc |
| 303623 | 5/9 Secondary reference Northrop Grumman Corp Electronic Systems Defensive System Div |
| VRP22-4E | 5/9 Secondary reference General Dynamics Motion Control Llc |
| CU06360087 | C/1 Advisory reference — outside the item-of-supply concept Kearfott Corp Div Kearfott Corporation |
NSN 5990-01-178-6307 is a Resolver,electrical, manufactured by General Dynamics Motion Control Llc, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-178-6307 has 1 manufacturer part number on file: RP22-4E (General Dynamics Motion Control Llc).
Key specifications for RP22-4E: Body Size: 22; Body Diameter: 2.1995 INCHES MINIMUM AND 2.2000 INCHES MAXIMUM IN; Body Style: PICK-OFF A; Overall Length: 0.6550 INCHES NOMINAL IN. 5 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.