The Gear Rack, cataloged under National Stock Number 3020-00-604-4650, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-604-4650 |
| Item Name | Gear Rack |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 38 |
| Nominal Distance From End to First Mounting Hole Center | 0.500 INCHES TRANSVERSELY THROUGH SIDE IN |
| Pitch Height | 0.4380 INCHES MINIMUM AND 0.4460 INCHES MAXIMUM IN |
| Mounting Hole Type and Quantity | 2 PLAIN AND 3 PLAIN TRANSVERSELY THROUGH SIDE |
| Mounting Hole Nominal Diameter | 0.188 INCHES AND 0.203 INCHES TRANSVERSELY THROUGH SIDE IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 7.500 INCHES IN |
| Style Designator | SQUARE OR RECTANGULAR |
| Tooth Form | STANDARD |
| Nominal Distance From Mounting Hole Center to Bottom | 0.189 INCHES TRANSVERSELY THROUGH SIDE IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Center to Center Nominal Distance Between Mounting Holes | 1.625 INCHES TRANSVERSELY THROUGH SIDE IN |
| Nominal Thickness | 0.500 INCHES IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.500 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 |
|---|---|
| CB57-42054PC12 | 5/9 Secondary reference U.S. Government activity |
| CB57-42149-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-604-4650 is a Gear Rack, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-604-4650: Teeth Quantity: 38; Nominal Distance From End to First Mounting Hole Center: 0.500 INCHES TRANSVERSELY THROUGH SIDE IN; Pitch Height: 0.4380 INCHES MINIMUM AND 0.4460 INCHES MAXIMUM IN; Mounting Hole Type and Quantity: 2 PLAIN AND 3 PLAIN TRANSVERSELY THROUGH SIDE. 16 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.