The Gear,helical, cataloged under National Stock Number 3020-01-079-2146, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dynalec Corporation. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-079-2146 |
| Primary Part Number | K154 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| Style Designator | PROTRUDING HUB |
| Material | STEEL OVERALL |
| Mounting Hole Type and Quantity | 2 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Face Nominal Width | 0.250 INCHES IN |
| Bore Nominal Diameter | 0.3750 INCHES BOTH ENDS IN |
| Nominal Outside Diameter | 0.6750 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES FIRST END IN |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Material Document and Classification | MIL-S-16782 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PINNED FIRST END |
| Tooth Form | STANDARD |
| Tooth Direction | RIGHT |
| Features Provided | CASEHARDENED |
| Mounting Hole Nominal Diameter | 0.094 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Bore Style | PLAIN BOTH ENDS |
| Helix Angle | 45.0000 DEGREES |
| Attachment Method | MOUNTING HOLE |
| Pitch Diameter | 0.6250 INCHES NOMINAL IN |
| Body Style | PLAIN, SOLID |
| Teeth Quantity | 15 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| K154 PRIMARY | Dynalec Corporation (USA) |
| 3331242-48 | Naval Sea Systems Command (USA) |
| K154 | The Electric Tachometer Corp. (USA) |
| 3331242 | Naval Sea Systems Command (USA) |
NSN 3020-01-079-2146 is a Gear,helical, manufactured by Dynalec Corporation, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-01-079-2146 has 4 cross-referenced part numbers: K154 (Dynalec Corporation), 3331242-48 (Naval Sea Systems Command), K154 (The Electric Tachometer Corp.), 3331242 (Naval Sea Systems Command).
There are 11 known substitutes for 3020-01-079-2146: 5120-00-156-9199, 6320-00-225-7013, 3020-01-064-5597 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for K154: Style Designator: PROTRUDING HUB; Material: STEEL OVERALL; Mounting Hole Type and Quantity: 2 PLAIN TRANSVERSELY THROUGH HUB FIRST END; Face Nominal Width: 0.250 INCHES IN. 23 total characteristics are documented in the Federal Logistics Information System.