The Gear,spur, cataloged under National Stock Number 3020-00-253-0382, 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 17 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-253-0382 |
| Primary Part Number | 44357PC9 |
| Item Name | Gear,spur |
| 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 |
| Bore Nominal Diameter | 0.500 INCHES BOTH ENDS IN |
| Teeth Quantity | 32 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 1.683 INCHES FIRST END IN |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Mounting Hole Type and Quantity | 4 COUNTERSUNK AXIALLY THROUGH BODY FIRST END |
| Style Designator | HUBLESS |
| Material Document and Classification | MIL-B-994,ALLOY 482,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 2.120 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY 482 OVERALL |
| Bolt Hole Circle Nominal Diameter | 0.811 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Counterbore Nominal Depth | 0.058 INCHES FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.156 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 |
|---|---|
| 63653PC4 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| SP3191 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 44357PC9 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 46189PC9 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-00-253-0382 is a Gear,spur, 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 3020-00-253-0382 has 4 manufacturer part numbers on file: 63653PC4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), SP3191 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 44357PC9 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 46189PC9 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 44357PC9: Bore Nominal Diameter: 0.500 INCHES BOTH ENDS IN; Teeth Quantity: 32; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 1.683 INCHES FIRST END IN. 17 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.