The Gear,spur, cataloged under National Stock Number 3020-00-347-8538, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-347-8538 |
| Primary Part Number | RB10514 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.461 INCHES BOTH ENDS IN |
| Teeth Quantity | 50 |
| Body Style | WEBBED, SOLID |
| Mounting Hole Type and Quantity | 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Mounting Hole Nominal Diameter | 0.125 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Hardness Rating | 90.0 ROCKWELL SUPERFICIAL 15-N NOMINAL TEETH |
| Hardness Rating | 24.0 ROCKWELL C NOMINAL HUB |
| Style Designator | FLUSH HUB |
| Material Document and Classification | MIL-S-6709 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 2.620 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.331 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-00-347-8538 is a Gear,spur, manufactured by Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-347-8538 has 2 manufacturer part numbers on file: RD24295 (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec), RB10514 (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec).
Key specifications for RB10514: Bore Nominal Diameter: 0.461 INCHES BOTH ENDS IN; Teeth Quantity: 50; Body Style: WEBBED, SOLID; Mounting Hole Type and Quantity: 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END. 16 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 3020-00-347-8538 has DEMIL Code B. 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.