The Gear,spur, cataloged under National Stock Number 3020-00-012-6019, 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 Equitable Engineering Company Inc.. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-012-6019 |
| Primary Part Number | S6135-20681-001 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Equitable Engineering Company Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.368 INCHES FIRST END IN |
| Hub Nominal Diameter | 0.623 INCHES BOTH ENDS IN |
| Teeth Quantity | 7 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.985 INCHES BOTH ENDS IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS-6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.2000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 11 FIRST END |
| Nominal Outside Diameter | 1.528 INCHES IN |
| Surface Treatment | CARBON OVERALL |
| Pressure Angle | 20.8597 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Spline Pitch Diameter | 0.3438 INCHES NOMINAL FIRST END IN |
| Face Nominal Width | 1.489 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 |
| Part Number | Manufacturer |
|---|---|
| S6135-20681-001 PRIMARY | Equitable Engineering Company Inc. (USA) |
| S6135-20681-1 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| S6135-20681-001 | Precision Gear Industries Llc (USA) |
| S6135-20681-001 | Triumph Gear Systems - Macomb, Inc (USA) |
| S6135-20681-1 PRIMARY | Bmt Aerospace Usa, Inc. (USA) |
| S6135-20681-1 | Astro Machine Corp (USA) |
| Reference | Meaning |
|---|---|
| S6135-2068-1-1 | 5/9 Secondary reference U.S. Government activity |
| S6135-20681 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 3020-00-012-6019 is a Gear,spur, manufactured by Equitable Engineering Company Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-012-6019 has 6 manufacturer part numbers on file: S6135-20681-001 (Equitable Engineering Company Inc.), S6135-20681-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), S6135-20681-001 (Precision Gear Industries Llc), S6135-20681-001 (Triumph Gear Systems - Macomb, Inc), S6135-20681-1 (Bmt Aerospace Usa, Inc.) and 1 more.
Key specifications for S6135-20681-001: Bore Nominal Diameter: 0.368 INCHES FIRST END IN; Hub Nominal Diameter: 0.623 INCHES BOTH ENDS IN; Teeth Quantity: 7; Body Style: PLAIN, SOLID. 18 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 3020-00-012-6019 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.