| Item Name | Chain Roller |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 00-254-1979 (002541979) |
| NCB Code | USA (00) |
| Manufacturer | Diamond Chain Co, Whitney Chain Operation Power, Koehring Cranes Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABNZ | EFFECTIVE LENGTH | 8.0000 FEET NOMINAL |
| AWSM | LINK PLATE WIDTH | 1.425 INCHES NOMINAL |
| AWSP | LINK PLATE WIDTH AT PIN END | 1.230 INCHES MAXIMUM |
| AWSQ | LINK PLATE NOMINAL THICKNESS | 0.1870 INCHES |
| AWWN | LINK ROLLER NOMINAL DIAMETER | 0.8750 INCHES |
| AWWP | LINK NOMINAL WIDTH BETWEEN PLATES | 1.0000 INCHES |
| CQBC | MINIMUM TENSILE STRENGTH | 28100 POUNDS PER SQUARE INCH |
| CTCR | LINK PIN NOMINAL DIAMETER | 0.4370 INCHES |
| MATT | MATERIAL | STEEL |
| ZZZX | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY EFFECTIVE LENGTH |
| Relevant Components for NSN - 3020-00-254-1979, 3020002541979 | ||||
| 3040-00-542-0494 (3040005420494) | 3020-00-622-2406 (3020006222406) | 3040-01-425-4898 (3040014254898) | 3010-01-302-9202 (3010013029202) | |
| 3040-00-709-1500 (3040007091500) | 3020-00-060-2503 (3020000602503) | 3040-00-115-5699 (3040001155699) | 3040-01-251-9385 (3040012519385) | |
| 3040-00-365-5573 (3040003655573) | 3040-01-627-0623 (3040016270623) | 3040-01-424-7581 (3040014247581) | 3040-01-476-8784 (3040014768784) | |
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