The Gear,worm Wheel, cataloged under National Stock Number 3020-00-141-8871, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-141-8871 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Helix Angle | 3.5833 DEGREES |
| Hub Nominal Diameter | 0.375 INCHES FIRST END IN |
| Teeth Quantity | 30 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Throat Nominal Radius | 0.146 INCHES IN |
| Nominal Overall Length | 0.478 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 0.6250 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 0.7050 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Mating Thread Lead Quantity | 1 |
| Face Nominal Width | 0.188 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 |
|---|---|
| 50363-7 | 3/9 Design control — primary reference Arma Div Ambac Industries Inc |
NSN 3020-00-141-8871 is a Gear,worm Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5840-01-101-6629, 5995-01-699-4577. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-141-8871: Helix Angle: 3.5833 DEGREES; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Teeth Quantity: 30; Body Style: PLAIN, SOLID. 15 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.