The Gear,worm, cataloged under National Stock Number 3020-01-643-0392, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-643-0392 |
| Primary Part Number | 8287071 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Style Designator | SQUARE OR RECTANGULAR |
| Nominal Thickness | 3.0 INCHES IN |
| Face Nominal Width | 3.5 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 |
|---|---|
| 8287071 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 282907 | 5/9 Secondary reference Gear Works, Seattle, Inc., the Dba Gear Works |
| 8287072 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-643-0392 is a Gear,worm, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-643-0392 has 1 manufacturer part number on file: 8287071 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-643-0490. Verify interchangeability with system specifications before substitution.
Key specifications for 8287071: Style Designator: SQUARE OR RECTANGULAR; Part Name Assigned by Controlling Agency: WORM STRH; End Item Identification: SLIDING PADEYE; Nominal Thickness: 3.0 INCHES IN. 3 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.