The Gear,bevel, cataloged under National Stock Number 3020-00-690-2891, 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 21 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 | 3020-00-690-2891 |
| Primary Part Number | 8738922 |
| Item Name | Gear,bevel |
| 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 | 2.167 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.000 INCHES FIRST END IN |
| Teeth Quantity | 64 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 71.8333 DEGREES |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 6 PLAIN AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Nominal Diameter | 0.410 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Teeth Type | STRAIGHT |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM TEETH |
| Nominal Overall Length | 0.807 INCHES IN |
| Style Designator | PERIPHERAL FACE, FRONT HUB FLUSH |
| Material Document and Classification | QQ-S-681,CLASS 150-125 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 8.0000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 8.041 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 150-125 OVERALL |
| Bolt Hole Circle Nominal Diameter | 4.000 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.380 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 |
|---|---|
| 8738922 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-690-2891 is a Gear,bevel, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-690-2891 has 1 manufacturer part number on file: 8738922 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8738922: Bore Nominal Diameter: 2.167 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.000 INCHES FIRST END IN; Teeth Quantity: 64; Body Style: PLAIN, SOLID. 21 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.