The Gear,bevel, cataloged under National Stock Number 3020-00-753-9759, 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 25 specifications, cited from the U.S. Government catalog. The record lists 2 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 | 3020-00-753-9759 |
| Primary Part Number | 7539759 |
| 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 |
| Hub Nominal Diameter | 0.997 INCHES SECOND END IN |
| Teeth Quantity | 25 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.625 INCHES SECOND END IN |
| Pitch Angle | 54.2453 DEGREES |
| Bore Style | W/COUNTERBORE SECOND END |
| Bore Style | SQUARE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 1.831 INCHES SECOND END IN |
| Teeth Type | STRAIGHT |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 2.250 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.5000 INCHES NOMINAL IN |
| Bore Nominal Width | 0.313 INCHES FIRST END IN |
| Hub Style Designator | 1 GROOVE SECOND END |
| Nominal Outside Diameter | 2.5912 INCHES IN |
| Nominal Distance From End to First Groove | 0.871 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 0.880 INCHES SECOND END IN |
| Counterbore Nominal Depth | 1.1100 INCHES SECOND END IN |
| First Groove Nominal Width | 0.500 INCHES SECOND END IN |
| Body Recess Nominal Depth | 0.3100 INCHES FIRST END IN |
| Face Nominal Width | 0.250 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 |
NSN 3020-00-753-9759 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 3020-00-753-9759 has 2 manufacturer part numbers on file: 7539759 (U S Army Tank Automotive Command Amsta-Im-Mm), 301981 (Renk America Llc Div Renk America).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-137-1397. Verify interchangeability with system specifications before substitution.
Key specifications for 7539759: Hub Nominal Diameter: 0.997 INCHES SECOND END IN; Teeth Quantity: 25; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 0.625 INCHES SECOND END IN. 25 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.