| Item Name | Gearrack |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 01-120-2819 (011202819) |
| NCB Code | USA (01) |
| Manufacturer | Allied Devices Corp, W M Berg Inc, Roller Bearing Company Of America, Electric Boat Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AJLA | TEETH QUANTITY | 137 |
| CWCD | NOMINAL OUTSIDE DIAMETER | 0.4997 INCHES |
| CWCK | NOMINAL THICKNESS | 0.480 INCHES |
| CWFR | NOMINAL OVERALL LENGTH | 18.000 INCHES |
| CWMW | TEETH TYPE | SPUR |
| CWMY | PITCH HEIGHT | 0.4370 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM |
| CWNH | TOOTH FORM | STANDARD |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWRM | FACE NOMINAL WIDTH | 0.188 INCHES |
| MATT | MATERIAL | STEEL COMP 416 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | ROUND |
| Relevant Components for NSN - 3020-01-120-2819, 3020011202819 | ||||
| 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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