The Gear,spur, cataloged under National Stock Number 3020-01-216-4178, 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 Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-216-4178 |
| Primary Part Number | 41415-1S |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.625 INCHES BOTH ENDS IN |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Style Designator | HUBLESS |
| Pitch Diameter | 3.1250 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.125 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 |
|---|---|
| 41415-1S PRIMARY | Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion (USA) |
| Reference | Meaning |
|---|---|
| 414151 | D/9 Drawing number reference only Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion |
| 414151-1 | 5/9 Secondary reference Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion |
NSN 3020-01-216-4178 is a Gear,spur, manufactured by Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-216-4178 has 1 manufacturer part number on file: 41415-1S (Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion).
Key specifications for 41415-1S: Bore Nominal Diameter: 0.625 INCHES BOTH ENDS IN; Body Style: PLAIN, WITH LIGHTENING HOLES; Style Designator: HUBLESS; Pitch Diameter: 3.1250 INCHES NOMINAL IN. 7 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.