The Gear Sector,internal, cataloged under National Stock Number 3020-01-114-6669, 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 Inc Div Newport News Shipbuilding. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-114-6669 |
| Primary Part Number | 2730-79 ITEM 17 |
| Item Name | Gear Sector,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Teeth Quantity | 16 |
| Nominal Distance Between Body Face and Protruding Hub End | 0.566 INCHES FIRST END IN |
| Teeth Type | SPUR |
| Style Designator | PROTRUDING HUB |
| Arc Nominal Length | 6.283 INCHES IN |
| Pitch Radius | 3.1250 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| Face Nominal Width | 0.372 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 |
|---|---|
| 2730-79 ITEM 17 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 501-4456540 REV | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 501-4456540 ITEM 17 | 3/2 Design control — primary reference U.S. Government activity |
| 2730-79 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 501-4456540 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-114-6669 is a Gear Sector,internal, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-114-6669 has 1 manufacturer part number on file: 2730-79 ITEM 17 (Huntington Ingalls Inc Div Newport News Shipbuilding).
3 possible matches (shared part number, not a government interchangeability claim): 3020-01-115-2137, 4820-01-188-3703, 4820-01-216-4162. Verify interchangeability with system specifications before substitution.
Key specifications for 2730-79 ITEM 17: Teeth Quantity: 16; Nominal Distance Between Body Face and Protruding Hub End: 0.566 INCHES FIRST END IN; Teeth Type: SPUR; Style Designator: PROTRUDING HUB. 9 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.