The Gear,spur, cataloged under National Stock Number 3020-01-040-7005, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-040-7005 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.375 INCHES BOTH ENDS IN |
| Teeth Quantity | 180 |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Style Designator | HUBLESS |
| Material Document and Classification | QQ-S-763,CLASS303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.7490 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 3.791 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| Face Nominal Width | 0.125 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 |
|---|---|
| 54174-40844 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-040-7005 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-040-7005: Bore Nominal Diameter: 0.375 INCHES BOTH ENDS IN; Teeth Quantity: 180; Surface Treatment Document and Classification: QQ-P-35,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, WITH LIGHTENING HOLES. 15 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.