The Gear,helical, cataloged under National Stock Number 3020-00-294-7777, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Struthers Wells Corp. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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 | 3020-00-294-7777 |
| Primary Part Number | 1837 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Struthers Wells Corp |
| Status | ACTIVE |
| Hub Style Designator | PLAIN BOTH ENDS |
| Tooth Direction | RIGHT |
| Face Nominal Width | 5.000 INCHES IN |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Helix Angle | 23.0000 DEGREES |
| Nominal Distance Between Body Face and Protruding Hub End | 2.000 INCHES FIRST END IN |
| Nominal Distance From Bore Center to Keyway Bottom | 2.438 INCHES BOTH ENDS IN |
| Hardness Rating | 96.0 ROCKWELL C MINIMUM AND 100.0 ROCKWELL C MAXIMUM HUB |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Tooth Form | STANDARD |
| Bore Nominal Diameter | 3.751 INCHES BOTH ENDS IN |
| Teeth Quantity | 59 |
| Pitch Diameter | 14.7500 INCHES NOMINAL IN |
| Nominal Outside Diameter | 15.2100 INCHES IN |
| Teeth Type | SINGLE HELIX |
| Material | STEEL OVERALL |
| Nominal Overall Length | 7.000 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Body Style | WEBBED, OFFSET, SOLID |
| Hub Nominal Diameter | 6.750 INCHES FIRST END IN |
| Keyway Nominal Width | 0.875 INCHES BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 315841PC285 | Naval Ship Systems Command (USA) |
| 1837 PRIMARY | Struthers Wells Corp (USA) |
NSN 3020-00-294-7777 is a Gear,helical, manufactured by Struthers Wells Corp, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-294-7777 has 2 cross-referenced part numbers: 315841PC285 (Naval Ship Systems Command), 1837 (Struthers Wells Corp).
There are 12 known substitutes for 3020-00-294-7777: 4820-00-036-1773, 5935-00-061-9309, 3110-00-156-3471 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1837: Hub Style Designator: PLAIN BOTH ENDS; Tooth Direction: RIGHT; Face Nominal Width: 5.000 INCHES IN; Bore Style: W/ KEYWAY BOTH ENDS. 22 total characteristics are documented in the Federal Logistics Information System.