The Gear,spur, cataloged under National Stock Number 3020-01-021-4960, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-021-4960 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.000 INCHES BOTH ENDS IN |
| Teeth Quantity | 48 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | HUBLESS, RECESSED BODY |
| Material Document and Classification | MIL-S-890,CLASS C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.8000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 4.925 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Body Recess Nominal Depth | 0.187 INCHES SECOND END IN |
| Body Recess Nominal Depth | 0.125 INCHES FIRST END IN |
| Face Nominal Width | 0.719 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 |
| Reference | Meaning |
|---|---|
| MX-261180 PC 108 | C/1 Advisory reference — outside the item-of-supply concept Babcock & Wilcox Co |
| 70152CMK-108 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 1003947 | 3/9 Design control — primary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 1219FPC108 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 1222FPC108 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| MX-261180 PC 108 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 1219FPC108 | C/1 Advisory reference — outside the item-of-supply concept Babcock & Wilcox Co |
| 1003947 | C/1 Advisory reference — outside the item-of-supply concept Babcock & Wilcox Co |
NSN 3020-01-021-4960 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-021-4960: Bore Nominal Diameter: 3.000 INCHES BOTH ENDS IN; Teeth Quantity: 48; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 14 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.