The Gear,internal, cataloged under National Stock Number 3020-01-307-8006, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-307-8006 |
| Primary Part Number | 298374-3 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Teeth Quantity | 32 |
| Body Style | PLAIN, SOLID |
| Mounting Hole Type and Quantity | 3 THREADED AND 1 PLAIN AXIALLY THROUGH BODY FIRST END |
| First Step Nominal Length | 0.250 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.188 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Overall Length | 1.156 INCHES IN |
| Pitch Diameter | 1.6250 INCHES NOMINAL IN |
| First Step Nominal Diameter | 1.500 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Mounting Hole Nominal Thread Size | 0.164 INCHES AXIALLY THROUGH BODY FIRST END IN |
| End Nominal Length | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.750 INCHES IN |
| End Nominal Diameter | 1.469 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.188 INCHES 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 |
|---|---|
| T-8003154-3 | Lockheed Martin Corporation Div Rms (USA) |
| 298374-3 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 298374 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3020-01-307-8006 is a Gear,internal, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-307-8006 has 2 manufacturer part numbers on file: T-8003154-3 (Lockheed Martin Corporation Div Rms), 298374-3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
3 possible matches (shared part number, not a government interchangeability claim): 3020-01-307-8007, 3020-01-307-8008, 3020-01-308-0731. Verify interchangeability with system specifications before substitution.
Key specifications for 298374-3: Teeth Quantity: 32; Body Style: PLAIN, SOLID; Mounting Hole Type and Quantity: 3 THREADED AND 1 PLAIN AXIALLY THROUGH BODY FIRST END; First Step Nominal Length: 0.250 INCHES FIRST END IN. 18 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.