The Gear,spur, cataloged under National Stock Number 3020-00-692-4858, 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 29 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 | 3020-00-692-4858 |
| Primary Part Number | 8674601 |
| 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 |
| Keyway Nominal Width | 0.096 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.501 INCHES BOTH ENDS IN |
| Teeth Quantity | 115 |
| Body Style | WEBBED, SOLID |
| Counterbore Nominal Diameter | 2.234 INCHES SECOND END IN |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Mounting Hole Type and Quantity | 3 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.653 INCHES FIRST END IN |
| First Step Nominal Length | 0.122 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.391 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 1.245 INCHES IN |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 7.1875 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 4.062 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.531 INCHES FIRST END IN |
| Nominal Outside Diameter | 7.309 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.298 INCHES BOTH ENDS IN |
| End Nominal Diameter | 0.750 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Bolt Hole Circle Nominal Diameter | 3.375 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Counterbore Nominal Depth | 0.146 INCHES SECOND END IN |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.171 INCHES SECOND END IN |
| Face Nominal Width | 0.594 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 |
|---|---|
| 8674601 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-692-4858 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 3020-00-692-4858 has 1 manufacturer part number on file: 8674601 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8674601: Keyway Nominal Width: 0.096 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.501 INCHES BOTH ENDS IN; Teeth Quantity: 115; Body Style: WEBBED, SOLID. 29 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.