The Gear,spur, cataloged under National Stock Number 3020-00-184-9239, 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19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-184-9239 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.508 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.230 INCHES BOTH ENDS IN |
| Teeth Quantity | 65 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.300 INCHES BOTH ENDS IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM TEETH |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM HUB |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 10.8333 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Spline Quantity | 24 BOTH ENDS |
| Nominal Outside Diameter | 11.115 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4620H OR STEEL COMP 8617H OR STEEL COMP 8620H OR STEEL COMP 8822H OVERALL |
| Counterbore Nominal Depth | 0.300 INCHES FIRST END IN |
| Spline Pitch Diameter | 2.4000 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 1.000 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2584657 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-184-9239 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-184-9239: Bore Nominal Diameter: 2.508 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.230 INCHES BOTH ENDS IN; Teeth Quantity: 65; Body Style: WEBBED, WITH LIGHTENING HOLES. 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.
NSN 3020-00-184-9239 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.