The Gear,bevel, cataloged under National Stock Number 3020-01-032-8405, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-032-8405 |
| Primary Part Number | 11675351 |
| 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 | 1.940 INCHES FIRST COUNTERBORE FIRST END IN |
| Hub Nominal Diameter | 2.340 INCHES FIRST END IN |
| Teeth Quantity | 30 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.680 INCHES FIRST COUNTERBORE SECOND END IN |
| Counterbore Nominal Diameter | 1.250 INCHES SECOND COUNTERBORE SECOND END IN |
| Counterbore Nominal Diameter | 1.312 INCHES FIRST COUNTERBORE FIRST END IN |
| Counterbore Nominal Diameter | 1.380 INCHES SECOND COUNTERBORE FIRST END IN |
| Pitch Angle | 61.9330 DEGREES |
| Bore Style | W/STEPPED COUNTERBORE FIRST COUNTERBORE FIRST END |
| Bore Style | W/STEPPED COUNTERBORE FIRST COUNTERBORE SECOND END |
| Mounting Hole Type and Quantity | 6 THREADED AXIALLY THROUGH BODY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 3.850 INCHES SECOND END IN |
| Teeth Type | STRAIGHT |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 4.440 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Material Document and Classification | ASTM A322 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Pitch Diameter | 3.0000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Mounting Hole Nominal Thread Size | 0.250 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Nominal Outside Diameter | 3.063 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.875 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Counterbore Nominal Depth | 0.160 INCHES SECOND COUNTERBORE FIRST END IN |
| Counterbore Nominal Depth | 0.190 INCHES FIRST COUNTERBORE FIRST END IN |
| Counterbore Nominal Depth | 1.250 INCHES SECOND COUNTERBORE SECOND END IN |
| Counterbore Nominal Depth | 1.499 INCHES FIRST COUNTERBORE SECOND END 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 3020-01-032-8405 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 3020-01-032-8405 has 3 manufacturer part numbers on file: 11675351 (U S Army Tank Automotive Command Amsta-Im-Mm), 11675351 (Seiler Instrument and Manufacturing Company, Incorporated), 1167351 (Forest City Gear Company).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-494-2498. Verify interchangeability with system specifications before substitution.
Key specifications for 11675351: Bore Nominal Diameter: 1.940 INCHES FIRST COUNTERBORE FIRST END IN; Hub Nominal Diameter: 2.340 INCHES FIRST END IN; Teeth Quantity: 30; Body Style: PLAIN, 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.