The Gear,internal, cataloged under National Stock Number 3020-01-350-9111, 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 Naval Sea Systems Command. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-350-9111 |
| Primary Part Number | 6743676 PC4 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Teeth Quantity | 101 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Flange Nominal Thickness | 0.115 INCHES IN |
| Flange Nominal Diameter | 5.250 INCHES IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 1.500 INCHES IN |
| Style Designator | FLANGED RING |
| Pitch Diameter | 4.2083 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 5.000 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4340 OVERALL |
| 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 |
|---|---|
| 6743676 PC4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 583-6743676 PC4 | 5/9 Secondary reference Naval Sea Systems Command |
| 6743676 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-350-9111 is a Gear,internal, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-350-9111 has 1 manufacturer part number on file: 6743676 PC4 (Naval Sea Systems Command).
6 possible matches (shared part number, not a government interchangeability claim): 3020-01-350-9113, 3020-01-350-9114, 3020-01-350-9115. Verify interchangeability with system specifications before substitution.
Key specifications for 6743676 PC4: Teeth Quantity: 101; Body Style: PLAIN, SOLID; Tooth Direction: RIGHT; Flange Nominal Thickness: 0.115 INCHES IN. 13 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.