The Gear,internal, cataloged under National Stock Number 3020-01-286-6421, 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 Thyssenkrupp Rothe Erde Usa Inc.. Government technical data includes 16 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-286-6421 |
| Primary Part Number | 2907656 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Thyssenkrupp Rothe Erde Usa Inc. |
| Status | ACTIVE |
| Teeth Quantity | 282 |
| Surface Treatment Document and Classification | MIL-C-23924 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.560 INCHES IN |
| Flange Nominal Diameter | 43.375 INCHES IN |
| Teeth Type | SPUR |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM TEETH |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM BODY |
| Nominal Overall Length | 2.750 INCHES IN |
| Style Designator | FLANGED RING |
| Material Document and Classification | QQ-S-764 TYPE 416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 35.2800 INCHES NOMINAL IN |
| Nominal Outside Diameter | 41.125 INCHES IN |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2907656 PRIMARY | Thyssenkrupp Rothe Erde Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2907656 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3020-01-286-6421 is a Gear,internal, manufactured by Thyssenkrupp Rothe Erde Usa Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-286-6421 has 1 manufacturer part number on file: 2907656 (Thyssenkrupp Rothe Erde Usa Inc.).
Key specifications for 2907656: Teeth Quantity: 282; Surface Treatment Document and Classification: MIL-C-23924 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.560 INCHES IN. 16 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.
NSN 3020-01-286-6421 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.