The Gear,spur, cataloged under National Stock Number 3020-01-356-9831, 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 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-356-9831 |
| Primary Part Number | 211050271 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.875 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.500 INCHES SECOND END IN |
| Teeth Quantity | 60 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.875 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 6.0000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Outside Diameter | 6.200 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.000 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 |
|---|---|
| 211050271 | Naval Sea Systems Command (USA) |
| 752-6405278-14 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| S1060-14 1/2 | 3/9 Design control — primary reference Martin Sprocket and Gear Inc |
| 6405278 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-356-9831 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-356-9831 has 2 manufacturer part numbers on file: 211050271 (Naval Sea Systems Command), 752-6405278-14 (Naval Sea Systems Command).
Key specifications for 211050271: Bore Nominal Diameter: 0.875 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.500 INCHES SECOND END IN; Teeth Quantity: 60; Body Style: PLAIN, SOLID. 13 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.