The Generator,engine Accessory, cataloged under National Stock Number 2920-00-377-5231, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-377-5231 |
| Primary Part Number | 7F7149 |
| Item Name | Generator,engine Accessory |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| FSC Application Data | ENGINE ELECTRICAL SYSTEM,NONAIRCRAFT |
| Distance Between Shaft Center and Bottom Mounting Hole Center | 3.062 INCHES NOMINAL IN |
| Top Mounting Hole Diameter | 0.625 INCHES NOMINAL IN |
| Shaft Drive End Style | STRAIGHT SHAFT END, THREADED, W/KEYWAY |
| Grounding Method | EXTERNAL |
| Thread Series | UNF |
| Distance From End to Keyway Center | 1.281 INCHES NOMINAL IN |
| Thread Length | 0.656 INCHES NOMINAL IN |
| Bottom Mounting Hole Diameter | 0.469 INCHES NOMINAL IN |
| Mounting Style | FLANGE MTD W/THREE MTG HOLES |
| Voltage in Volts | 6.0 |
| Thread Diameter | 0.500 INCHES NOMINAL IN |
| Armature Minimum Speed in RPM at Full Current Output | 1600 |
| Shaft Rotation Direction | CLOCKWISE |
| Thread Direction | RIGHT-HAND |
| Center to Center Distance Between Mounting Holes Along Width | 3.625 INCHES NOMINAL IN |
| Second Step Diameter | 0.7491 INCHES MINIMUM AND 0.7496 INCHES MAXIMUM IN |
| Pilot Diameter | 3.247 INCHES MINIMUM AND 3.249 INCHES MAXIMUM IN |
| Pilot Height | 0.250 INCHES NOMINAL IN |
| Keyway Length | 0.750 INCHES NOMINAL IN |
| Keyway Width | 0.156 INCHES NOMINAL IN |
| Ground Polarity Type | NEGATIVE OR POSITIVE |
| Center to Center Distance Between Top Mounting Slot and Bottom Mounting Hole | 5.875 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 20 |
| Submersibility | NONSUBMERSIBLE |
| Maximum Output Current Rating in Amps | 30.0 |
| Furnished Items | DRIVE PULLEY AND COOLING FAN |
| Unthreaded Portion Length | 1.312 INCHES NOMINAL IN |
| Thread Class | 2A A |
| 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 |
|---|---|
| 7F7149 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 1102725 | Borgwarner Pds (anderson), L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| 1102725 | 5/9 Secondary reference General Motors Corp |
| 1102725 | 5/9 Secondary reference General Motors Corp AC-Delco Div Government Order Dept |
| 1102725 | 3/9 Design control — primary reference General Motors Corp Delco Remy Div |
NSN 2920-00-377-5231 is a Generator,engine Accessory, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-377-5231 has 2 manufacturer part numbers on file: 7F7149 (Caterpillar Inc Div Caterpillar Defense), 1102725 (Borgwarner Pds (anderson), L.l.c.).
1 possible match (shared part number, not a government interchangeability claim): 2920-01-596-0094. Verify interchangeability with system specifications before substitution.
Key specifications for 7F7149: FSC Application Data: ENGINE ELECTRICAL SYSTEM,NONAIRCRAFT; Distance Between Shaft Center and Bottom Mounting Hole Center: 3.062 INCHES NOMINAL IN; Top Mounting Hole Diameter: 0.625 INCHES NOMINAL IN; Shaft Drive End Style: STRAIGHT SHAFT END, THREADED, W/KEYWAY. 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.