The Gear,spur, cataloged under National Stock Number 3020-00-567-6947, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-567-6947 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.190 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.406 INCHES BOTH ENDS IN |
| Teeth Quantity | 42 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.780 INCHES BOTH ENDS IN |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.500 INCHES FIRST END IN |
| First Step Nominal Length | 0.500 INCHES FIRST END IN |
| Hardness Rating | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM TEETH |
| Hardness Rating | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM HUB |
| Nominal Overall Length | 0.740 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | MIL-S-7493,COMP 4620 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.3080 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.025 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.375 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.375 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.390 INCHES BOTH ENDS IN |
| End Nominal Diameter | 1.022 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4620 OVERALL |
| Counterbore Nominal Depth | 0.438 INCHES BOTH ENDS IN |
| Face Nominal Width | 0.240 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 |
|---|---|
| 7883 | 5/2 Secondary reference U.S. Government activity |
| A7883 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-567-6947 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 3120-00-719-7428, 5935-00-944-9854, 5950-01-014-4893. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-567-6947: Keyway Nominal Width: 0.190 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.406 INCHES BOTH ENDS IN; Teeth Quantity: 42; Body Style: PLAIN, SOLID. 25 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.