The Gear,helical, cataloged under National Stock Number 3020-01-516-7266, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-516-7266 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B4345216-11 | 3/9 Design control — primary reference U.S. Government activity |
| 7410503 | D/9 Drawing number reference only Naval Sea Systems Command |
| 596-7409234-8 | 5/9 Secondary reference Naval Sea Systems Command |
| B4345216A-11 | 3/2 Design control — primary reference U.S. Government activity |
| B434-5220-8 | 5/9 Secondary reference U.S. Government activity |
| 596-7410503-11 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 3020-01-516-7266 is a Gear,helical, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3020-01-516-7376. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-01-516-7266: End Item Identification: GEARBOX ASSY,SEAWOLF CLASS SSN. 0 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.
NSN 3020-01-516-7266 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.