The Gear,spur, cataloged under National Stock Number 3020-00-239-3015, 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 Ambac International Corporation Div Ambac International. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-239-3015 |
| Primary Part Number | 9402-22 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Ambac International Corporation Div Ambac International |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.218 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.375 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Teeth Quantity | 111 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Nominal Distance Between Body Face and Protruding Hub End | 0.063 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES FIRST END IN |
| Nominal Overall Length | 0.437 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-B-16540,GRADE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.3125 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY 903 OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.125 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 |
|---|---|
| 9402-22 PRIMARY | Ambac International Corporation Div Ambac International (USA) |
NSN 3020-00-239-3015 is a Gear,spur, manufactured by Ambac International Corporation Div Ambac International, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-239-3015 has 1 manufacturer part number on file: 9402-22 (Ambac International Corporation Div Ambac International).
Key specifications for 9402-22: Bore Nominal Diameter: 0.218 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.375 INCHES SECOND END IN; Hub Nominal Diameter: 0.500 INCHES FIRST END IN; Teeth Quantity: 111. 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.