The Gear,bevel, cataloged under National Stock Number 3020-00-411-2159, 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 27 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-411-2159 |
| Primary Part Number | 8734001 |
| 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 | 1.579 INCHES BOTH ENDS IN |
| Teeth Quantity | 31 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 34.5625 DEGREES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.621 INCHES SECOND END IN |
| First Step Nominal Length | 0.308 INCHES SECOND END IN |
| Teeth Type | STRAIGHT |
| Hardness Rating | 29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 1.000 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.5833 INCHES NOMINAL IN |
| First Step Nominal Diameter | 2.440 INCHES FIRST END IN |
| First Step Nominal Diameter | 2.440 INCHES SECOND END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Spline Quantity | 24 BOTH ENDS |
| End Nominal Length | 0.312 INCHES FIRST END IN |
| End Nominal Length | 0.312 INCHES SECOND END IN |
| Nominal Outside Diameter | 2.7310 INCHES IN |
| End Nominal Diameter | 2.249 INCHES FIRST END IN |
| End Nominal Diameter | 2.249 INCHES SECOND END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL COMP 4140 OVERALL |
| Spline Pitch Diameter | 1.5000 INCHES NOMINAL BOTH ENDS IN |
| Body Recess Nominal Depth | 0.1260 INCHES FIRST END IN |
| Face Nominal Width | 0.500 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 |
|---|---|
| 8734001 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 25704-281542-06-0 | Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke (DEU) |
| 25704-281542-06-0 | Knds Deutschland Gmbh & Co. Kg - Werk Kassel - (DEU) |
| 8734001 | Liebherr-Aerospace Lindenberg Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 3020004112159 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 3020004112159 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 8734001 | 5/9 Secondary reference Feinmechanische Werke Mainz Gmbh |
NSN 3020-00-411-2159 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 3020-00-411-2159 has 4 manufacturer part numbers on file: 8734001 (U S Army Tank Automotive Command Amsta-Im-Mm), 25704-281542-06-0 (Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke), 25704-281542-06-0 (Knds Deutschland Gmbh & Co. Kg - Werk Kassel -), 8734001 (Liebherr-Aerospace Lindenberg Gmbh).
Key specifications for 8734001: Bore Nominal Diameter: 1.579 INCHES BOTH ENDS IN; Teeth Quantity: 31; Body Style: PLAIN, SOLID; Pitch Angle: 34.5625 DEGREES. 27 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.