The Gear Assembly, cataloged under National Stock Number 3020-01-253-9632, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Dynalec Corporation. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Gear Assembly |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Dynalec Corporation (CAGE 12763) |
| Parameter | Value |
|---|---|
| NSN | 3020-01-253-9632 |
| Primary Part Number | 4L80 |
| Item Name | Gear Assembly |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4L80 PRIMARY | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| B610 | D/9 Drawing number reference only The Electric Tachometer Corp. |
| A1086 | 5/9 Secondary reference The Electric Tachometer Corp. |
| 4L80 | 5/9 Secondary reference The Electric Tachometer Corp. |
NSN 3020-01-253-9632 is a Gear Assembly, manufactured by Dynalec Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-253-9632 has 1 manufacturer part number on file: 4L80 (Dynalec Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 3120-01-360-0495, 6110-01-485-3282. Verify interchangeability with system specifications before substitution.
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.