The Gear Spiral, cataloged under National Stock Number 3020-00-923-6548, 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 General Electric Company. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-923-6548 |
| Primary Part Number | 963B689PC3-4 |
| Item Name | Gear Spiral |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| General Characteristics Item Description | PC3,LEFT HAND,TEETH 20,PITCH 6,PITCH DIA 3.333,35 DEG ANGLE,PC4,RIGHT HAND,TEETH 30,PITCH 6,PITCH 6,PITCH DIA 5.000,35 DEG ANGLE |
| 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 |
|---|---|
| 963B689PC3-4 PRIMARY | General Electric Company (USA) |
| 963B689PC3-4 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 620AR30X630AL20 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-923-6548 is a Gear Spiral, manufactured by General Electric Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-923-6548 has 2 manufacturer part numbers on file: 963B689PC3-4 (General Electric Company), 963B689PC3-4 (General Electric Company).
Key specifications for 963B689PC3-4: General Characteristics Item Description: PC3,LEFT HAND,TEETH 20,PITCH 6,PITCH DIA 3.333,35 DEG ANGLE,PC4,RIGHT HAND,TEETH 30,PITCH 6,PITCH 6,PITCH DIA 5.000,35 DEG ANGLE. 1 specification is 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.