The Gear,spur, cataloged under National Stock Number 3020-01-487-7815, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-487-7815 |
| Primary Part Number | 124-7391374 PC 26 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Teeth Quantity | 22 |
| Body Style | PLAIN, SOLID |
| Nominal Distance Between Body Face and Protruding Hub End | 0.750 INCHES BETWEEN BODY AND FLANGE IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | MIL-S-22698 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.7500 INCHES NOMINAL IN |
| Nominal Outside Diameter | 2.950 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.250 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 |
|---|---|
| 124-7391374 PC 26 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 124-7391374 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-487-7815 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-487-7815 has 1 manufacturer part number on file: 124-7391374 PC 26 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-490-6254. Verify interchangeability with system specifications before substitution.
Key specifications for 124-7391374 PC 26: Teeth Quantity: 22; Body Style: PLAIN, SOLID; Nominal Distance Between Body Face and Protruding Hub End: 0.750 INCHES BETWEEN BODY AND FLANGE IN; Style Designator: PROTRUDING HUB. 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.