The Gear,spur, cataloged under National Stock Number 3020-00-994-4570, 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 Cec Vibration Products, Llc Dba Cec Vibrations Products. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-994-4570 |
| Primary Part Number | 157777 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Cec Vibration Products, Llc Dba Cec Vibrations Products |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.130 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.475 INCHES BOTH ENDS IN |
| Teeth Quantity | 24 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.062 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.025 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 0.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 0.812 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | GLASS FIBER OVERALL |
| Face Nominal Width | 0.163 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 |
|---|---|
| 157777 PRIMARY | Cec Vibration Products, Llc Dba Cec Vibrations Products (USA) |
| Reference | Meaning |
|---|---|
| 157777 | 5/9 Secondary reference Sypris Electronics, Llc |
NSN 3020-00-994-4570 is a Gear,spur, manufactured by Cec Vibration Products, Llc Dba Cec Vibrations Products, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-994-4570 has 1 manufacturer part number on file: 157777 (Cec Vibration Products, Llc Dba Cec Vibrations Products).
Key specifications for 157777: Bore Nominal Diameter: 0.130 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.475 INCHES BOTH ENDS IN; Teeth Quantity: 24; 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.