The Gear,helical, cataloged under National Stock Number 3020-00-243-9974, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-243-9974 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.375 INCHES BOTH ENDS IN |
| Teeth Quantity | 42 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Teeth Type | SINGLE HELIX |
| Style Designator | HUBLESS |
| Pitch Diameter | 5.5800 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 5.8285 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Face Nominal Width | 1.750 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 |
| Reference | Meaning |
|---|---|
| FSL27-3PC45 | 5/9 Secondary reference U.S. Government activity |
| FSN27PC29 | 5/9 Secondary reference U.S. Government activity |
| FS27Z | 5/9 Secondary reference U.S. Government activity |
| FS27ZRH | 3/9 Design control — primary reference U.S. Government activity |
| FSN29GPC58 | 5/9 Secondary reference U.S. Government activity |
| FSC27PC45 | 5/9 Secondary reference U.S. Government activity |
| FSN29PC58 | 5/9 Secondary reference U.S. Government activity |
| FSC27APC45 | 5/9 Secondary reference U.S. Government activity |
| 15FSN27C | 5/9 Secondary reference U.S. Government activity |
| FSN29-1PC58 | 5/9 Secondary reference U.S. Government activity |
| FSN27CPC29 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-243-9974 is a Gear,helical, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-243-9974: Keyway Nominal Width: 0.375 INCHES BOTH ENDS IN; Teeth Quantity: 42; Body Style: PLAIN, SOLID; Tooth Direction: RIGHT. 11 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.