The Gear,spur, cataloged under National Stock Number 3020-01-025-6531, 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 Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-025-6531 |
| Primary Part Number | 805-1749019PC80 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Keyway Nominal Width | 0.188 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.010 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.885 INCHES FIRST END IN |
| Teeth Quantity | 24 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.190 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | ASTM B147-52 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.6666 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 2.890 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.625 INCHES BOTH ENDS IN |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 0.280 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 |
|---|---|
| 805-1749019PC80 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 805-1749019PC80 | 5/9 Secondary reference U.S. Government activity |
| 805-1749019 | D/9 Drawing number reference only Naval Sea Systems Command |
| 29-80/LOWER GUIDE ASSY. | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-025-6531 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-025-6531 has 1 manufacturer part number on file: 805-1749019PC80 (Naval Sea Systems Command).
Key specifications for 805-1749019PC80: Keyway Nominal Width: 0.188 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.010 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.885 INCHES FIRST END IN; Teeth Quantity: 24. 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.
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.