The Gear,helical, cataloged under National Stock Number 3020-00-735-3140, 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 18 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 | 3020-00-735-3140 |
| Primary Part Number | 7353140 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Keyway Nominal Width | 0.158 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.876 INCHES BOTH ENDS IN |
| Helix Angle | 15.0000 DEGREES |
| Teeth Quantity | 95 |
| Body Style | WEBBED, SOLID |
| Tooth Direction | LEFT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | FLUSH HUB |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.1470 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 6.275 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.514 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.750 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 3020-00-735-3140 is a Gear,helical, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-735-3140 has 2 manufacturer part numbers on file: 7353140 (U S Army Tank Automotive Command Amsta-Im-Mm), 303176 (The Oilgear Company Dba Jiffy Lube 213 Div Oilgear).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-163-2715. Verify interchangeability with system specifications before substitution.
Key specifications for 7353140: Keyway Nominal Width: 0.158 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.876 INCHES BOTH ENDS IN; Helix Angle: 15.0000 DEGREES; Teeth Quantity: 95. 18 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.