The Gear Sector,spur, cataloged under National Stock Number 3020-01-210-4360, 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 Huntington Ingalls Incorporated Div Ingalls Shipbuilding. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-210-4360 |
| Primary Part Number | 1079-501-39 PIECE7 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Huntington Ingalls Incorporated Div Ingalls Shipbuilding |
| Status | ACTIVE |
| Teeth Quantity | 44 |
| Nominal Outside Radius | 3.833 INCHES IN |
| Style Designator | HUBLESS |
| Material Document and Classification | QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Tooth Form | STANDARD |
| Arc Nominal Length | 7.416 INCHES IN |
| Pitch Radius | 3.6666 INCHES NOMINAL IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | NICKEL ALLOY OVERALL |
| Face Nominal Width | 0.437 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 |
|---|---|
| 1079-501-39 PIECE7 PRIMARY | Huntington Ingalls Incorporated Div Ingalls Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 2277641 | D/9 Drawing number reference only U.S. Government activity |
| 1079-501-39 PIE | C/1 Advisory reference — outside the item-of-supply concept Huntington Ingalls Incorporated Div Ingalls Shipbuilding |
NSN 3020-01-210-4360 is a Gear Sector,spur, manufactured by Huntington Ingalls Incorporated Div Ingalls Shipbuilding, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-210-4360 has 1 manufacturer part number on file: 1079-501-39 PIECE7 (Huntington Ingalls Incorporated Div Ingalls Shipbuilding).
Key specifications for 1079-501-39 PIECE7: Teeth Quantity: 44; Nominal Outside Radius: 3.833 INCHES IN; Style Designator: HUBLESS; Material Document and Classification: QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 10 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.