The Gear,helical, cataloged under National Stock Number 3020-01-041-3772, 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 Secs Inc. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Gear,helical |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Raytheon Company (CAGE 54X10); Secs Inc (CAGE 23266); Designatronics Incorporated Div Sterling Instruments Div (CAGE 00328); Roller Bearing Co of America, Inc Div Pic Design (CAGE 00141); Raytheon Company Dba Raytheon Co (CAGE 3B150) |
| Parameter | Value |
|---|---|
| NSN | 3020-01-041-3772 |
| Primary Part Number | HG159 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Secs Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 149101-1 | Raytheon Company (USA) |
| HG159 PRIMARY | Secs Inc (USA) |
| HF-60 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| AC5-60 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| 149101-1 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 149101-1 | 5/9 Secondary reference Raytheon Company Div Corp |
| 149101 | D/9 Drawing number reference only Raytheon Company Div Corp |
NSN 3020-01-041-3772 is a Gear,helical, manufactured by Secs Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-041-3772 has 5 manufacturer part numbers on file: 149101-1 (Raytheon Company), HG159 (Secs Inc), HF-60 (Designatronics Incorporated Div Sterling Instruments Div), AC5-60 (Roller Bearing Co of America, Inc Div Pic Design), 149101-1 (Raytheon Company Dba Raytheon Co).
1 possible match (shared part number, not a government interchangeability claim): 5835-01-080-3526. Verify interchangeability with system specifications before substitution.
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.