The Gear,spur, cataloged under National Stock Number 3020-01-368-0073, 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 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-368-0073 |
| Primary Part Number | 571-6134008 ITEM 15 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.312 INCHES BOTH ENDS IN |
| Teeth Quantity | 12 |
| Clamping Surface Nominal Length | 0.250 INCHES BOTH ENDS IN |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.281 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 0.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | SPLIT BOTH ENDS |
| Nominal Outside Diameter | 0.583 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 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 |
|---|---|
| 571-6134008 ITEM 15 | Naval Sea Systems Command (USA) |
| H23-12 | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| 6134008 | D/9 Drawing number reference only Naval Sea Systems Command |
| LBS-C2-12 | 5/9 Secondary reference Nordex Inc |
| C24S18-012 | 3/9 Design control — primary reference W. M. Berg, Inc. |
| DH23T12 | 5/9 Secondary reference Allied Devices Corp Dba Absolute Precision Co |
| C24S18-12 | 5/9 Secondary reference W. M. Berg, Inc. |
| C24S1 | 5/9 Secondary reference W. M. Berg, Inc. |
NSN 3020-01-368-0073 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-368-0073 has 2 manufacturer part numbers on file: 571-6134008 ITEM 15 (Naval Sea Systems Command), H23-12 (Roller Bearing Co of America, Inc Div Pic Design).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-368-1382. Verify interchangeability with system specifications before substitution.
Key specifications for 571-6134008 ITEM 15: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.312 INCHES BOTH ENDS IN; Teeth Quantity: 12; Clamping Surface Nominal Length: 0.250 INCHES BOTH ENDS IN. 15 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.