The Gear,spur, cataloged under National Stock Number 3020-01-204-0668, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Southern Gear & Machine Inc. Government technical data includes 17 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-204-0668 |
| Primary Part Number | 256-25 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Southern Gear & Machine Inc |
| Status | ACTIVE |
| Teeth Quantity | 25 |
| Body Style | PLAIN, SOLID |
| Hub Nominal Diameter | 0.312 INCHES FIRST END IN |
| Tooth Form | STANDARD |
| Surface Treatment | PASSIVATE OVERALL |
| Face Nominal Width | 0.125 INCHES IN |
| Nominal Outside Diameter | 0.422 INCHES IN |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | PROTRUDING HUB |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES FIRST END IN |
| Material Document and Classification | MIL-F-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL OVERALL |
| Hub Style Designator | PINNED FIRST END |
| Pressure Angle | 20.0000 DEGREES |
| Pitch Diameter | 0.3906 INCHES NOMINAL IN |
| Bore Nominal Diameter | 0.125 INCHES BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-01-204-0668 is a Gear,spur, manufactured by Southern Gear & Machine Inc, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-01-204-0668 has 4 cross-referenced part numbers: S10-25-FF (W. M. Berg, Inc.), 419977-6 (Raytheon Company Dba Raytheon), 419977 (Raytheon Company Dba Raytheon), 256-25 (Southern Gear & Machine Inc).
There are 5 known substitutes for 3020-01-204-0668: 5133-00-266-9471, 5950-00-942-1418, 5340-01-357-3062 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 256-25: Teeth Quantity: 25; Body Style: PLAIN, SOLID; Hub Nominal Diameter: 0.312 INCHES FIRST END IN; Tooth Form: STANDARD. 17 total characteristics are documented in the Federal Logistics Information System.