The Gear,spur, cataloged under National Stock Number 3020-01-018-7683, 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 The Boeing Company. Government technical data includes 25 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-018-7683 |
| Primary Part Number | A15D3730-1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.690 INCHES BOTH ENDS IN |
| Teeth Quantity | 64 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.055 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.165 INCHES FIRST END IN |
| First Step Nominal Length | 0.625 INCHES FIRST END IN |
| First Step Nominal Length | 0.550 INCHES SECOND END IN |
| Hardness Rating | 59.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM HUB |
| Hardness Rating | 59.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 6.4000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.370 INCHES BOTH ENDS IN |
| Hub Style Designator | 1 STEP BOTH ENDS |
| Spline Quantity | 12 BOTH ENDS |
| End Nominal Length | 0.500 INCHES SECOND END IN |
| End Nominal Length | 0.540 INCHES FIRST END IN |
| Nominal Outside Diameter | 6.605 INCHES IN |
| Surface Treatment | OXIDE OVERALL |
| End Nominal Diameter | 1.181 INCHES BOTH ENDS IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 0.6000 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.500 INCHES IN |
| 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 |
|---|---|
| A15D3730-1 PRIMARY | The Boeing Company (USA) |
NSN 3020-01-018-7683 is a Gear,spur, manufactured by The Boeing Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-018-7683 has 1 manufacturer part number on file: A15D3730-1 (The Boeing Company).
Key specifications for A15D3730-1: Bore Nominal Diameter: 0.690 INCHES BOTH ENDS IN; Teeth Quantity: 64; Body Style: WEBBED, WITH LIGHTENING HOLES; Bore Style: INVOLUTE SPLINE BOTH ENDS. 25 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 3020-01-018-7683 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.