The Gear Sector,spur, cataloged under National Stock Number 3020-01-083-9734, 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 Propulsion Systems, Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-083-9734 |
| Primary Part Number | 15079-A |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Propulsion Systems, Inc. |
| Status | ACTIVE |
| Backlash Designation | GRADE D |
| Teeth Quantity | 40 |
| Nominal Outside Radius | 3.750 INCHES IN |
| Mounting Hole Type and Quantity | 2 PLAIN AXIALLY THROUGH BODY SECOND END |
| Precision Classification | QUALITY NUMBER 8 |
| Style Designator | PLAIN RING |
| Tooth Form | STANDARD |
| Arc Nominal Length | 7.500 INCHES IN |
| Pitch Radius | 3.6250 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.750 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 |
|---|---|
| 15079-A | Propulsion Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 715 WPG 4400 56 PIECE 45 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-083-9734 is a Gear Sector,spur, manufactured by Propulsion Systems, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-083-9734 has 1 manufacturer part number on file: 15079-A (Propulsion Systems, Inc.).
Key specifications for 15079-A: Backlash Designation: GRADE D; Teeth Quantity: 40; Nominal Outside Radius: 3.750 INCHES IN; Mounting Hole Type and Quantity: 2 PLAIN AXIALLY THROUGH BODY SECOND END. 13 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.