The Gear,spur, cataloged under National Stock Number 3020-00-914-1004, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 24 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 | 3020-00-914-1004 |
| Primary Part Number | 8350398 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.645 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.060 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.000 INCHES SECOND END IN |
| Teeth Quantity | 13 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.815 INCHES FIRST END IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Bore Style | W/COUNTERBORE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.160 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.180 INCHES FIRST END IN |
| Hardness Rating | 60.0 ROCKWELL C MINIMUM OVERALL |
| Nominal Overall Length | 0.560 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.6250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 19 BOTH ENDS |
| Nominal Outside Diameter | 1.840 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| Counterbore Nominal Depth | 0.060 INCHES FIRST END IN |
| Spline Pitch Diameter | 0.5938 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.220 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 |
|---|---|
| 8350398 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-914-1004 is a Gear,spur, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-914-1004 has 1 manufacturer part number on file: 8350398 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8350398: Bore Nominal Diameter: 0.645 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.060 INCHES FIRST END IN; Hub Nominal Diameter: 1.000 INCHES SECOND END IN; Teeth Quantity: 13. 24 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.