The Gear,helical, cataloged under National Stock Number 3020-00-607-5963, 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 Grimes Aerospace Company. Government technical data includes 20 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 | 3020-00-607-5963 |
| Primary Part Number | A9501-1 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.249 INCHES COUNTER BORE SECOND END IN |
| Helix Angle | 10.0000 DEGREES |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Teeth Quantity | 40 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.3040 INCHES COUNTER BORE SECOND END IN |
| Tooth Direction | RIGHT |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.205 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 0.6250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PINNED BOTH ENDS |
| Nominal Outside Diameter | 0.6510 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | PLASTIC BODY |
| Material | COPPER ALLOY OVERALL |
| Counterbore Nominal Depth | 0.0650 INCHES COUNTER BORE SECOND END IN |
| Face Nominal Width | 0.135 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 |
|---|---|
| A9501-1 PRIMARY | Grimes Aerospace Company (USA) |
NSN 3020-00-607-5963 is a Gear,helical, manufactured by Grimes Aerospace Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-607-5963 has 1 manufacturer part number on file: A9501-1 (Grimes Aerospace Company).
Key specifications for A9501-1: Bore Nominal Diameter: 0.249 INCHES COUNTER BORE SECOND END IN; Helix Angle: 10.0000 DEGREES; Hub Nominal Diameter: 0.500 INCHES FIRST END IN; Teeth Quantity: 40. 20 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 3020-00-607-5963 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.