The Gear,spur, cataloged under National Stock Number 3020-00-692-4860, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-692-4860 |
| Primary Part Number | 8674604 |
| 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 | 2.441 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 4.000 INCHES FIRST END IN |
| Teeth Quantity | 98 |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 3 THREADED AXIALLY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.467 INCHES FIRST END IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 0.873 INCHES IN |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1141 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.1250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Mounting Hole Nominal Thread Size | 0.375 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Nominal Outside Diameter | 6.249 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 24 AXIALLY THROUGH HUB FIRST END |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1141 OVERALL |
| Bolt Hole Circle Nominal Diameter | 3.374 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Mounting Hole Thread Series Designator | UNF AXIALLY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.188 INCHES SECOND END IN |
| Face Nominal Width | 0.406 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 |
|---|---|
| 8674604 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-692-4860 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 3020-00-692-4860 has 1 manufacturer part number on file: 8674604 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8674604: Bore Nominal Diameter: 2.441 INCHES BOTH ENDS IN; Hub Nominal Diameter: 4.000 INCHES FIRST END IN; Teeth Quantity: 98; Body Style: WEBBED, OFFSET, SOLID. 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.