The Gear,spur, cataloged under National Stock Number 3020-00-974-1092, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-974-1092 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.062 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.437 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.676 INCHES FIRST END IN |
| Teeth Quantity | 24 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Mounting Hole Type and Quantity | 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.220 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.125 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM HUB |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM TEETH |
| Nominal Overall Length | 0.498 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 0.810 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.249 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.278 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 |
|---|---|
| 2320-568 | 5/2 Secondary reference U.S. Government activity |
| 3320-568 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-974-1092 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6130-01-695-2661. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-974-1092: Keyway Nominal Width: 0.062 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.437 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.676 INCHES FIRST END IN; Teeth Quantity: 24. 22 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.