The Regulator,engine Generator, cataloged under National Stock Number 2920-01-144-0253, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Transpo Electronics Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2920-01-144-0253 |
| Primary Part Number | M5-172A |
| Item Name | Regulator,engine Generator |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Transpo Electronics Inc |
| Status | ACTIVE |
| Terminal Quantity | 3 |
| Terminal Type | RING |
| Mounting Style | TWO HOLE |
| Voltage Regulator Unit Quantity | 1 |
| 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 |
|---|---|
| 8RG2012 | Alliance Communications Inc (USA) |
| 5-172 | Motorola Automotive Electronics (USA) |
| M5-172A PRIMARY | Transpo Electronics Inc (USA) |
| 105-172 PRIMARY | Prestolite Electric Inc (USA) |
| 8RG2012 | Motorola Automotive Electronics (USA) |
| AT55163 PRIMARY | Deere & Company Dba John Deere Dubuque Works Div John Deere Dubuque Works (USA) |
| AT55163 | Deere & Co (USA) |
| 70C44812E02 | Motorola Automotive Electronics (USA) |
| Reference | Meaning |
|---|---|
| 105-172 | 5/9 Secondary reference Prestolite Electric Inc |
NSN 2920-01-144-0253 is a Regulator,engine Generator, manufactured by Transpo Electronics Inc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-144-0253 has 8 manufacturer part numbers on file: 8RG2012 (Alliance Communications Inc), 5-172 (Motorola Automotive Electronics), M5-172A (Transpo Electronics Inc), 105-172 (Prestolite Electric Inc), 8RG2012 (Motorola Automotive Electronics) and 3 more.
Key specifications for M5-172A: Terminal Quantity: 3; Terminal Type: RING; Mounting Style: TWO HOLE; Voltage Regulator Unit Quantity: 1. 4 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.