The Gear,helical, cataloged under National Stock Number 3020-00-971-5021, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dana Corp Spicer Transmission Div. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-971-5021 |
| Primary Part Number | 62-1-8 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Dana Corp Spicer Transmission Div |
| Status | ACTIVE |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance From Bore Center to Keyway Bottom | 1.406 INCHES BOTH ENDS IN |
| Material | STEEL COMP 8620H OVERALL |
| Nominal Distance Between Body Face and Protruding Hub End | 0.844 INCHES FIRST END IN |
| Helix Angle | 26.1838 DEGREES |
| Tooth Form | STANDARD |
| Hub Nominal Diameter | 3.500 INCHES FIRST END IN |
| Keyway Nominal Width | 0.375 INCHES BOTH ENDS IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Face Nominal Width | 1.281 INCHES IN |
| Hardness Rating | 59.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Teeth Type | SINGLE HELIX |
| Teeth Quantity | 43 |
| Nominal Distance Between Body Face and Recessed Hub End | 0.234 INCHES SECOND END IN |
| Bore Nominal Diameter | 2.375 INCHES BOTH ENDS IN |
| Nominal Outside Diameter | 8.223 INCHES IN |
| Pitch Diameter | 7.9857 INCHES NOMINAL IN |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Pressure Angle | 17.5000 DEGREES |
| Hub Nominal Diameter | 3.500 INCHES SECOND END IN |
| Tooth Direction | RIGHT |
| Body Style | WEBBED, SOLID |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8712209 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 205-9A | Marmon Group Inc the Active Gear Co Div (USA) |
| 62-1-8 PRIMARY | Dana Corp Spicer Transmission Div (USA) |
| 973593R1 | Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA) |
| 973593R1 | Navistar Intl Corp Truck Br Ohio Plant (USA) |
NSN 3020-00-971-5021 is a Gear,helical, manufactured by Dana Corp Spicer Transmission Div, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-971-5021 has 5 cross-referenced part numbers: 8712209 (U S Army Tank Automotive Command Amsta-Im-Mm), 205-9A (Marmon Group Inc the Active Gear Co Div), 62-1-8 (Dana Corp Spicer Transmission Div), 973593R1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 973593R1 (Navistar Intl Corp Truck Br Ohio Plant).
There are 12 known substitutes for 3020-00-971-5021: 1005-00-019-7933, 5120-00-180-0708, 5998-00-248-2265 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 62-1-8: Bore Style: W/ KEYWAY BOTH ENDS; Nominal Distance From Bore Center to Keyway Bottom: 1.406 INCHES BOTH ENDS IN; Material: STEEL COMP 8620H OVERALL; Nominal Distance Between Body Face and Protruding Hub End: 0.844 INCHES FIRST END IN. 23 total characteristics are documented in the Federal Logistics Information System.