The Gear,worm Wheel, cataloged under National Stock Number 3020-01-178-1068, 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 Ge Aviation Systems Llc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-178-1068 |
| Primary Part Number | 996801-01 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.187 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.625 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.000 INCHES FIRST END IN |
| Teeth Quantity | 50 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Mounting Hole Type and Quantity | 2 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Face Type | CONCAVE |
| Nominal Overall Length | 1.3750 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | 66,AISI/SAE 1018 FED STD 2ND MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.0000 INCHES NOMINAL IN |
| Hub Style Designator | PINNED FIRST END |
| Mounting Hole Nominal Thread Size | 0.316 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Mounting Hole Thread Quantity Per Inch | 18 TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance From Bore Center to Keyway Bottom | 0.401 INCHES BOTH ENDS IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY OR STEEL COMP 1018 OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.6250 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 |
NSN 3020-01-178-1068 is a Gear,worm Wheel, manufactured by Ge Aviation Systems Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-178-1068 has 2 manufacturer part numbers on file: 996801 (Ge Aviation Systems Llc), 996801-01 (Ge Aviation Systems Llc).
Key specifications for 996801-01: Keyway Nominal Width: 0.187 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.625 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.000 INCHES FIRST END IN; Teeth Quantity: 50. 22 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.