The Gear,helical, cataloged under National Stock Number 3020-00-265-7749, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Eaton Corp Transmission Div. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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 | 3020-00-265-7749 |
| Primary Part Number | 5491 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Eaton Corp Transmission Div |
| Status | ACTIVE |
| Teeth Quantity | 45 |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.245 INCHES BOTH ENDS IN |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Tooth Direction | RIGHT |
| Tooth Form | STANDARD |
| Nominal Overall Length | 1.685 INCHES IN |
| Face Nominal Width | 1.252 INCHES IN |
| Helix Angle | 30.0000 DEGREES |
| Nominal Distance Between Body Face and Recessed Hub End | 0.188 INCHES SECOND END IN |
| Nominal Outside Diameter | 7.5740 INCHES IN |
| Teeth Type | SINGLE HELIX |
| Hub Nominal Diameter | 2.750 INCHES SECOND END IN |
| Hub Nominal Diameter | 2.750 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Keyway Nominal Width | 0.378 INCHES BOTH ENDS IN |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Bore Nominal Diameter | 2.249 INCHES BOTH ENDS IN |
| Pitch Diameter | 7.2340 INCHES NOMINAL IN |
| Material | STEEL COMP 8620H OVERALL |
| Nominal Distance From Bore Center to Keyway Bottom | 1.317 INCHES BOTH ENDS IN |
| Material Document and Classification | 66,AISI/SAE 8620H FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Style | WEBBED, SOLID |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| T264-9A | Marmon Group Inc the Active Gear Co Div (USA) |
| 231581 | Brockway Motor Trucks Div of Mack Trucks Inc (USA) |
| 5491 PRIMARY | Eaton Corp Transmission Div (USA) |
| 7097156 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 2B5491 | Fwd Seagrave Holdings Lp (USA) |
| 24145 | Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations (USA) |
NSN 3020-00-265-7749 is a Gear,helical, manufactured by Eaton Corp Transmission Div, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-265-7749 has 6 cross-referenced part numbers: T264-9A (Marmon Group Inc the Active Gear Co Div), 231581 (Brockway Motor Trucks Div of Mack Trucks Inc), 5491 (Eaton Corp Transmission Div), 7097156 (U S Army Tank Automotive Command Amsta-Im-Mm), 2B5491 (Fwd Seagrave Holdings Lp) and 1 more.
There are 12 known substitutes for 3020-00-265-7749: 5310-00-115-6835, 5330-00-118-3016, 5905-00-141-1168 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 5491: Teeth Quantity: 45; Hub Style Designator: PLAIN BOTH ENDS; Nominal Distance Between Body Face and Protruding Hub End: 0.245 INCHES BOTH ENDS IN; Style Designator: ONE PROTRUDING HUB, ONE RECESSED HUB. 23 total characteristics are documented in the Federal Logistics Information System.