The Gear,spur, cataloged under National Stock Number 3020-00-753-7548, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-753-7548 |
| Primary Part Number | 7537548 |
| 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 | 0.406 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.218 INCHES SECOND END IN |
| Teeth Quantity | 98 |
| Second Step Nominal Diameter | 1.123 INCHES FIRST END IN |
| Body Style | PLAIN, SOLID |
| Third Step Nominal Diameter | 1.062 INCHES FIRST END IN |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.156 INCHES FIRST END IN |
| Nominal Overall Length | 1.315 INCHES IN |
| Second Step Nominal Length | 0.484 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-B-691,COMP 1 OR COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.0625 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.119 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.343 INCHES FIRST END IN |
| Nominal Outside Diameter | 3.148 INCHES IN |
| End Nominal Diameter | 0.875 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY 922 AND COPPER ALLOY 836 OVERALL |
| Attachment Method | CLAMP TAB |
| Third Step Nominal Length | 0.109 INCHES FIRST END IN |
| Face Nominal Width | 0.161 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 |
|---|---|
| 7537548 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 7537548 | 5/9 Secondary reference General Motors Corp Detroit Diesel Allison Div Military Vehicles Opn |
NSN 3020-00-753-7548 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 3020-00-753-7548 has 1 manufacturer part number on file: 7537548 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7537548: Bore Nominal Diameter: 0.406 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.218 INCHES SECOND END IN; Teeth Quantity: 98; Second Step Nominal Diameter: 1.123 INCHES FIRST END IN. 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.