The Gear,spur, cataloged under National Stock Number 3020-00-770-7793, 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 22 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-770-7793 |
| Primary Part Number | 7707793 |
| 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 |
| Furnished Items and Quantity | 1 EXTERNALLY LUBRICATED BEARING |
| Bore Nominal Diameter | 0.669 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.062 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.812 INCHES FIRST END IN |
| Teeth Quantity | 28 |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 1.531 INCHES SECOND END IN |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.320 INCHES FIRST END IN |
| Hardness Rating | 20.0 ROCKWELL C NOMINAL HUB |
| Hardness Rating | 58.0 ROCKWELL C NOMINAL TEETH |
| Nominal Overall Length | 0.851 INCHES IN |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 3.734 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP 4620H OVERALL |
| Counterbore Nominal Depth | 0.094 INCHES SECOND END IN |
| Face Nominal Width | 0.531 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 |
NSN 3020-00-770-7793 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 3020-00-770-7793 has 3 manufacturer part numbers on file: 7707793 (U S Army Tank Automotive Command Amsta-Im-Mm), 6765631 (General Motors Corp), 6765631 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 7707793: Furnished Items and Quantity: 1 EXTERNALLY LUBRICATED BEARING; Bore Nominal Diameter: 0.669 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.062 INCHES SECOND END IN; Hub Nominal Diameter: 1.812 INCHES FIRST END IN. 22 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.