The Gear,spur, cataloged under National Stock Number 3020-00-475-0637, 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 18 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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3020-00-475-0637 |
| Primary Part Number | 155-20 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Southern Gear & Machine Inc |
| Status | CANCELLED |
| Body Style | PLAIN, SOLID |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Nominal Outside Diameter | 0.458 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Pressure Angle | 20.0000 DEGREES |
| Face Nominal Width | 0.125 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Surface Treatment | PASSIVATE OVERALL |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES FIRST END IN |
| Material | STEEL COMP 303 OVERALL |
| Hub Nominal Diameter | 0.375 INCHES FIRST END IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PINNED FIRST END |
| Material Document and Classification | MIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bore Nominal Diameter | 0.188 INCHES BOTH ENDS IN |
| Pitch Diameter | 0.4166 INCHES NOMINAL IN |
| Teeth Quantity | 20 |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 155-20 PRIMARY | Southern Gear & Machine Inc (USA) |
| G289672 | At and T Co Advanced Technology Systems (USA) |
| G289672 | American Telephone and Telegraph Co (USA) |
| 7453341P1 | Lockheed Martin Corporation Div Rms (USA) |
| 7453341P1 | General Electric Company (USA) |
| P48S19-20 | W. M. Berg, Inc. (USA) |
NSN 3020-00-475-0637 is a Gear,spur, manufactured by Southern Gear & Machine Inc, classified under FSC 3020 (No Item Name Available). Status: cancelled.
NSN 3020-00-475-0637 has 6 cross-referenced part numbers: 155-20 (Southern Gear & Machine Inc), G289672 (At and T Co Advanced Technology Systems), G289672 (American Telephone and Telegraph Co), 7453341P1 (Lockheed Martin Corporation Div Rms), 7453341P1 (General Electric Company) and 1 more.
There are 12 known substitutes for 3020-00-475-0637: 5950-00-087-6705, 3110-00-100-0364, 3110-00-100-0524 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 155-20: Body Style: PLAIN, SOLID; Surface Treatment Document and Classification: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Precision Classification: QUALITY NUMBER 10 OR QUALITY NUMBER 11; Nominal Outside Diameter: 0.458 INCHES IN. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 3020-00-475-0637 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.