The Gear,spur, cataloged under National Stock Number 3020-00-573-4568, 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 21 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 | 3020-00-573-4568 |
| Primary Part Number | 10898994 |
| 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 | 0.538 INCHES BOTH ENDS IN |
| Teeth Quantity | 28 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 1.000 INCHES COUNTER BORE SECOND END IN |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Bore Style | INVOLUTE SPLINE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 1.684 INCHES FIRST END IN |
| First Step Nominal Length | 0.340 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.7500 INCHES NOMINAL IN |
| First Step Nominal Diameter | 1.250 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Spline Quantity | 11 FIRST END |
| End Nominal Length | 1.344 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.875 INCHES IN |
| End Nominal Diameter | 0.810 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.460 INCHES COUNTER BORE SECOND END IN |
| Spline Pitch Diameter | 0.4583 INCHES NOMINAL FIRST END IN |
| Face Nominal Width | 0.310 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 |
|---|---|
| 10898994 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-573-4568 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 3020-00-573-4568 has 1 manufacturer part number on file: 10898994 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10898994: Bore Nominal Diameter: 0.538 INCHES BOTH ENDS IN; Teeth Quantity: 28; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 1.000 INCHES COUNTER BORE SECOND END IN. 21 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.