The Gear Cluster,internal-External,s, cataloged under National Stock Number 3020-01-024-1554, 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 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-024-1554 |
| Primary Part Number | 206797 |
| Item Name | Gear Cluster,internal-External,s |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| General Characteristics Item Description | 1.600 IN. O/A LG; INTERNAL GEAR 20 TEETH; 20 DEG PRESSURE ANGLE; DIAMETRAL PITCH 8-10; 3.650 IN. OD; EXTERNAL GEAR 5.250 IN. OD,0.860 IN. FACE WIDTH; HUB ON EXTERNAL END 3.131 IN. DIA. 0.140 IN. LG IN |
| 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 |
|---|---|
| 206797 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| Reference | Meaning |
|---|---|
| 223034H1 | 5/9 Secondary reference Komatsu American Intl Co |
NSN 3020-01-024-1554 is a Gear Cluster,internal-External,s, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-024-1554 has 1 manufacturer part number on file: 206797 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-263-6139. Verify interchangeability with system specifications before substitution.
Key specifications for 206797: General Characteristics Item Description: 1.600 IN. O/A LG; INTERNAL GEAR 20 TEETH; 20 DEG PRESSURE ANGLE; DIAMETRAL PITCH 8-10; 3.650 IN. OD; EXTERNAL GEAR 5.250 IN. OD,0.860 IN. FACE WIDTH; HUB ON EXTERNAL END 3.131 IN. DIA. 0.140 IN. LG IN. 1 specification is 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.