The Gear,spur, cataloged under National Stock Number 3020-00-734-6740, 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 25 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-734-6740 |
| Primary Part Number | 7346740 |
| 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 | 3.327 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 4.188 INCHES SECOND END IN |
| Hub Nominal Diameter | 4.688 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.063 INCHES SECOND END IN |
| Teeth Quantity | 61 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.750 INCHES FIRST END IN |
| Hardness Rating | 59.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Material Document and Classification | 66JGAAISI/SAE 8620 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 10.1667 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | 1 GROOVE FIRST END |
| Spline Quantity | 20 BOTH ENDS |
| Nominal Outside Diameter | 10.450 INCHES IN |
| Surface Treatment | CARBON OVERALL |
| Nominal Distance From End to First Groove | 0.185 INCHES FIRST END IN |
| Pressure Angle | 17.5000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 3.997 INCHES FIRST END IN |
| First Groove Nominal Width | 0.442 INCHES FIRST END IN |
| Spline Pitch Diameter | 3.3333 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 1.500 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 |
|---|---|
| 7346740 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 62-8-36 | Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA) |
| Reference | Meaning |
|---|---|
| 100067R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| KC2505 | 5/9 Secondary reference Spalla Inc |
| 62-8-36 | 5/2 Secondary reference U.S. Government activity |
| 100067R1 | 5/2 Secondary reference U.S. Government activity |
| 316675 | 5/9 Secondary reference Daf Trucks N.v. |
| 2345417 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 2345417 | 5/9 Secondary reference General Motors Corp |
NSN 3020-00-734-6740 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 3020-00-734-6740 has 2 manufacturer part numbers on file: 7346740 (U S Army Tank Automotive Command Amsta-Im-Mm), 62-8-36 (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products).
2 possible matches (shared part number, not a government interchangeability claim): 6695-01-294-0303, 5985-01-460-8647. Verify interchangeability with system specifications before substitution.
Key specifications for 7346740: Bore Nominal Diameter: 3.327 INCHES BOTH ENDS IN; Hub Nominal Diameter: 4.188 INCHES SECOND END IN; Hub Nominal Diameter: 4.688 INCHES FIRST END IN; Nominal Distance Between Body Face and Recessed Hub End: 0.063 INCHES SECOND END IN. 25 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.