The Gear,spur, cataloged under National Stock Number 3020-00-253-0397, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-253-0397 |
| Primary Part Number | SP10606 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Keyway Nominal Width | 0.2015 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.9379 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.7500 INCHES BOTH ENDS IN |
| Teeth Quantity | 13 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ 2 KEYWAYS BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1200 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.5330 INCHES FIRST END IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-624-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.1670 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 2.4170 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.5698 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.5000 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 |
| Part Number | Manufacturer |
|---|---|
| SP10606 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| TP10606 | 5/9 Secondary reference L and E Machine Experimental Lab Inc |
| TP10606 | 5/9 Secondary reference Grant Gear Works Inc |
NSN 3020-00-253-0397 is a Gear,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-253-0397 has 1 manufacturer part number on file: SP10606 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for SP10606: Keyway Nominal Width: 0.2015 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.9379 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.7500 INCHES BOTH ENDS IN; Teeth Quantity: 13. 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.