The Gear,worm, cataloged under National Stock Number 3020-00-902-5677, 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 Continental Electronics Corp. Government technical data includes 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-902-5677 |
| Primary Part Number | A57996-1 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Continental Electronics Corp |
| Status | ACTIVE |
| Thread Form Direction | RIGHT-HAND |
| Bore Nominal Diameter | 0.250 INCHES FIRST END IN |
| Helix Angle | 4.0833 DEGREES |
| Hub Nominal Diameter | 0.360 INCHES FIRST END IN |
| Bore Style | PLAIN FIRST END |
| Mounting Hole Type and Quantity | 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1875 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.078 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Nominal Overall Length | 0.875 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 0.4375 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 0.500 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.687 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 |
|---|---|
| A57996-1 PRIMARY | Continental Electronics Corp (USA) |
NSN 3020-00-902-5677 is a Gear,worm, manufactured by Continental Electronics Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-902-5677 has 1 manufacturer part number on file: A57996-1 (Continental Electronics Corp).
Key specifications for A57996-1: Thread Form Direction: RIGHT-HAND; Bore Nominal Diameter: 0.250 INCHES FIRST END IN; Helix Angle: 4.0833 DEGREES; Hub Nominal Diameter: 0.360 INCHES FIRST END IN. 17 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.