The Gear Special, cataloged under National Stock Number 3020-00-453-1165, 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 Rolls-Royce Controls and Data Services Limited. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 Special |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Rolls-Royce Controls and Data Services Limited (CAGE U4287) |
| Parameter | Value |
|---|---|
| NSN | 3020-00-453-1165 |
| Primary Part Number | 838-44 |
| Item Name | Gear Special |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rolls-Royce Controls and Data Services Limited |
| 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 |
|---|---|
| 838-44 PRIMARY | Rolls-Royce Controls and Data Services Limited (GBR) |
| 838B44 PRIMARY | Rolls-Royce Controls and Data Services Limited (GBR) |
| Reference | Meaning |
|---|---|
| 838-44 | 5/9 Secondary reference Goodrich Control Systems Ltd T/a Goodrich Engine Control Systems |
| 838B44 | 5/9 Secondary reference Goodrich Control Systems Ltd T/a Goodrich Engine Control Systems |
| 2915-99-6061428 | 6/9 Informative reference only U.S. Government activity |
NSN 3020-00-453-1165 is a Gear Special, manufactured by Rolls-Royce Controls and Data Services Limited, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-453-1165 has 2 manufacturer part numbers on file: 838-44 (Rolls-Royce Controls and Data Services Limited), 838B44 (Rolls-Royce Controls and Data Services Limited).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-317-6723, 3020-01-429-9634, 5305-01-724-3715. 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.