The Gear Rack, cataloged under National Stock Number 3020-01-312-1971, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-312-1971 |
| Item Name | Gear Rack |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 60 |
| Pitch Height | 0.6875 INCHES NOMINAL IN |
| Tooth Direction | RIGHT |
| Teeth Type | SPUR |
| Nominal Overall Length | 47.375 INCHES IN |
| Style Designator | SQUARE OR RECTANGULAR |
| Material Document and Classification | MIL-S-8729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Tooth Form | STUB |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4130 OVERALL |
| Nominal Thickness | 0.890 INCHES IN |
| Face Nominal Width | 1.248 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 |
|---|---|
| 7K0405 | 5/9 Secondary reference Federal Equipment Co |
| D549A004 REV A | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| D549A004 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-312-1971 is a Gear Rack, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-312-1971: Teeth Quantity: 60; Pitch Height: 0.6875 INCHES NOMINAL IN; Tooth Direction: RIGHT; Teeth Type: SPUR. 12 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.