The Gear Rack, cataloged under National Stock Number 3020-00-810-4159, 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 Gichner Systems Group, Inc. Div C5isr Division. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-810-4159 |
| Primary Part Number | 6960039-003 |
| Item Name | Gear Rack |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Gichner Systems Group, Inc. Div C5isr Division |
| Status | ACTIVE |
| Teeth Quantity | 18 |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Distance From End to First Mounting Hole Center | 0.6250 INCHES TRANSVERSELY THROUGH BOTTOM IN |
| Pitch Height | 0.5000 INCHES NOMINAL IN |
| Mounting Hole Type and Quantity | 3 COUNTERBORED TRANSVERSELY THROUGH BOTTOM |
| Mounting Hole Nominal Diameter | 0.281 INCHES TRANSVERSELY THROUGH BOTTOM IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 63.000 INCHES IN |
| Style Designator | SQUARE OR RECTANGULAR |
| Tooth Form | STANDARD |
| Surface Treatment | CADMIUM OVERALL |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Center to Center Nominal Distance Between Mounting Holes | 4.7100 INCHES TRANSVERSELY THROUGH BOTTOM IN |
| Nominal Thickness | 0.750 INCHES IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.250 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 |
|---|---|
| 6960039-003 PRIMARY | Gichner Systems Group, Inc. Div C5isr Division (USA) |
| Reference | Meaning |
|---|---|
| 6960039-003 | 3/9 Design control — primary reference Gichner Systems Group Inc Gichner Mobilizer Div |
NSN 3020-00-810-4159 is a Gear Rack, manufactured by Gichner Systems Group, Inc. Div C5isr Division, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-810-4159 has 1 manufacturer part number on file: 6960039-003 (Gichner Systems Group, Inc. Div C5isr Division).
Key specifications for 6960039-003: Teeth Quantity: 18; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Distance From End to First Mounting Hole Center: 0.6250 INCHES TRANSVERSELY THROUGH BOTTOM IN; Pitch Height: 0.5000 INCHES NOMINAL IN. 17 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.