The Gear,helical, cataloged under National Stock Number 3020-01-355-7684, 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 Hersey Measurement Co Div of Miller Industries Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-355-7684 |
| Primary Part Number | 51015G014 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hersey Measurement Co Div of Miller Industries Inc |
| Status | ACTIVE |
| Material Document and Classification | MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | BRONZE OVERALL |
| 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 |
|---|---|
| 51015G014 PRIMARY | Hersey Measurement Co Div of Miller Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| BDN-750-A | D/9 Drawing number reference only Hersey Measurement Co Div of Miller Industries Inc |
| BDN-750-A PIECE 17 | 5/9 Secondary reference Hersey Measurement Co Div of Miller Industries Inc |
NSN 3020-01-355-7684 is a Gear,helical, manufactured by Hersey Measurement Co Div of Miller Industries Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-355-7684 has 1 manufacturer part number on file: 51015G014 (Hersey Measurement Co Div of Miller Industries Inc).
2 possible matches (shared part number, not a government interchangeability claim): 3010-01-363-6826, 4820-01-371-1812. Verify interchangeability with system specifications before substitution.
Key specifications for 51015G014: Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; End Item Identification: 6680-01-168-0669; Material: BRONZE OVERALL. 2 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.