The Gear Sector,spur, cataloged under National Stock Number 3020-00-989-4755, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-989-4755 |
| Primary Part Number | 1170505REVA |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Nominal Outside Radius | 3.1562 INCHES IN |
| Nominal Overall Length | 0.375 INCHES IN |
| Tooth Form | STANDARD |
| Pitch Radius | 3.1250 INCHES NOMINAL IN |
| Pressure Angle | 14.5000 DEGREES |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.375 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 |
|---|---|
| 1170505REVA PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1170505REVA | 5/9 Secondary reference U.S. Government activity |
| 1170505REVA | 5/9 Secondary reference Arma Div Ambac Industries Inc |
NSN 3020-00-989-4755 is a Gear Sector,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-989-4755 has 1 manufacturer part number on file: 1170505REVA (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1170505REVA: Nominal Outside Radius: 3.1562 INCHES IN; Nominal Overall Length: 0.375 INCHES IN; Tooth Form: STANDARD; Pitch Radius: 3.1250 INCHES NOMINAL IN. 7 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.