The Gear,spur, cataloged under National Stock Number 3020-00-948-5320, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-948-5320 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 57 |
| Body Style | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| Nominal Distance Between Body Face and Protruding Hub End | 0.770 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.900 INCHES FIRST END IN |
| First Step Nominal Length | 0.078 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 8 |
| Nominal Overall Length | 3.020 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.0714 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 2.625 INCHES SECOND END IN |
| Hub Style Designator | 1 STEP SECOND END |
| End Nominal Length | 0.692 INCHES SECOND END IN |
| Nominal Outside Diameter | 4.205 INCHES IN |
| End Nominal Diameter | 2.362 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.350 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 |
|---|---|
| 11699908 | 3/9 Design control — primary reference Springfield Armory |
NSN 3020-00-948-5320 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-948-5320: Teeth Quantity: 57; Body Style: WEBBED, OFFSET, WITH LIGHTENING HOLES; Nominal Distance Between Body Face and Protruding Hub End: 0.770 INCHES SECOND END IN; Nominal Distance Between Body Face and Protruding Hub End: 1.900 INCHES FIRST END IN. 19 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.