The Gear,internal, cataloged under National Stock Number 3020-01-175-6476, 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 Corporation. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-175-6476 |
| Primary Part Number | 71320382-003 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Teeth Quantity | 200 |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.125 INCHES IN |
| Flange Nominal Diameter | 7.850 INCHES IN |
| Mounting Hole Type and Quantity | 16 PLAIN AXIALLY THROUGH FLANGE |
| Precision Classification | QUALITY NUMBER 12 |
| Mounting Hole Nominal Diameter | 0.090 INCHES AND 0.193 INCHES AXIALLY THROUGH FLANGE IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 0.188 INCHES IN |
| Style Designator | FLANGED RING |
| Material Document and Classification | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 6.950 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 630 OVERALL |
| Bolt Hole Circle Nominal Diameter | 7.460 INCHES AXIALLY THROUGH FLANGE IN |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 71320382-003 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 71320382 | D/9 Drawing number reference only Lockheed Martin Corporation |
NSN 3020-01-175-6476 is a Gear,internal, manufactured by Lockheed Martin Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-175-6476 has 1 manufacturer part number on file: 71320382-003 (Lockheed Martin Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-189-3360, 3020-01-685-4885. Verify interchangeability with system specifications before substitution.
Key specifications for 71320382-003: Teeth Quantity: 200; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.125 INCHES IN; Flange Nominal Diameter: 7.850 INCHES IN. 19 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.