The Starter,engine,electrical, cataloged under National Stock Number 2920-00-025-9977, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Prestolite Electric Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2920-00-025-9977 |
| Primary Part Number | MAY4132 |
| Item Name | Starter,engine,electrical |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Voltage in Volts | 12.0 |
| Engaging Mechanism Opening Angular Deviation in Deg | 135.0 |
| Mounting Hole Diameter | 0.484 INCHES NOMINAL IN |
| Shaft Rotation Direction | CLOCKWISE |
| Mounting Flange Shape Style | OVAL |
| Engaging Mechanism to Armature Positional Relationship | STRAIGHT |
| Mounting Flange Angular Deviation in Deg | 45.0 |
| Mounting Hole Radius | 2.062 INCHES NOMINAL IN |
| Engaging Mechanism Style | PERIPHERAL OUTBOARD GEAR DRIVE W/WORM SHAFT, SHAFT, SHIFT LEVER, COLLAR AND OVER-RUNNING CLUTCH W/DRIVE HOUSING |
| Terminal Type and Quantity | 1 THREADED STUD |
| 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 |
|---|---|
| 920400 | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| MAY4132 PRIMARY | Prestolite Electric Inc (USA) |
| 7732831 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| MAY4132 | 5/9 Secondary reference Prestolite Electric Inc |
NSN 2920-00-025-9977 is a Starter,engine,electrical, manufactured by Prestolite Electric Inc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-025-9977 has 3 manufacturer part numbers on file: 920400 (Chrysler Realty Company Llc Dba Daimler Chrysler), MAY4132 (Prestolite Electric Inc), 7732831 (U S Army Tank Automotive Command Amsta-Im-Mm).
2 possible matches (shared part number, not a government interchangeability claim): 4210-00-497-6274, 7910-01-472-7521. Verify interchangeability with system specifications before substitution.
Key specifications for MAY4132: Voltage in Volts: 12.0; Engaging Mechanism Opening Angular Deviation in Deg: 135.0; Mounting Hole Diameter: 0.484 INCHES NOMINAL IN; Shaft Rotation Direction: CLOCKWISE. 10 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.