The Regulator,engine Generator, cataloged under National Stock Number 2920-00-730-9211, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-730-9211 |
| Item Name | Regulator,engine Generator |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Status | ACTIVE |
| Field Relay Unit | NOT INCLUDED |
| Terminal Quantity | 4 |
| Terminal Type | SCREW |
| Distance Between Holes Along Length | 1.250 INCHES NOMINAL IN |
| Shock Mount | NOT PROVIDED |
| Conduit Connection Quantity | 2 |
| Cutout Voltage Rating | 9.0 MINIMUM AND 10.0 MAXIMUM |
| Radio Interference Shielding | NOT PROVIDED |
| Cut-in Voltage Rating | 12.3 MINIMUM AND 13.3 MAXIMUM |
| Mounting Style | TWO HOLE |
| Voltage Regulator Unit Type | WIRE WOUND COIL |
| Mounting Hole Diameter | 0.194 INCHES NOMINAL IN |
| Output Voltage Rating in Volts | 13.9 MINIMUM AND 14.3 MAXIMUM |
| System Voltage Rating | 12.0 |
| Voltage Regulator Unit Quantity | 2 |
| Terminal Encasement | ENCASED |
| Circuit Control Device Type | CIRCUIT BREAKER |
| System Ground Polarity | NEGATIVE OR POSITIVE |
| Reverse Current Overload Circuit Breaker | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| VBX4221A | C/1 Advisory reference — outside the item-of-supply concept Prestolite Electric Inc |
| 39063 | 5/9 Secondary reference Taylor-Dunn Corporation Dba Metro Crown International |
| VBX4221A | 3/9 Design control — primary reference Prestolite Electric Inc |
| VR248 | 5/9 Secondary reference Echlin Inc |
NSN 2920-00-730-9211 is a Regulator,engine Generator, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2540-00-762-4449, 5340-01-470-9000. Verify interchangeability with system specifications before substitution.
Key specifications for 2920-00-730-9211: Field Relay Unit: NOT INCLUDED; Terminal Quantity: 4; Terminal Type: SCREW; Distance Between Holes Along Length: 1.250 INCHES NOMINAL IN. 19 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.