| Item Name | Thumbscrew |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-968-7158 (009687158) |
| NCB Code | USA (00) |
| Manufacturer | Siewek Tool Co Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | LEFT-HAND |
| AASA | THREAD LENGTH | 1.875 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 2.313 INCHES NOMINAL |
| AASK | HEAD STYLE | THUMB NO. 1 |
| AASU | HEAD HEIGHT | 0.313 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.625 INCHES NOMINAL |
| ABQJ | POINT STYLE | FULL DOG |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Components Related to NSN - 5305-00-968-7158, 5305009687158 | ||||
| 5305-00-058-8627 (5305000588627) | 5305-01-464-0977 (5305014640977) | 5310-01-004-6958 (5310010046958) | 5315-01-470-7865 (5315014707865) | |
| 5340-00-015-2268 (5340000152268) | 5305-00-841-3941 (5305008413941) | 5320-00-205-9596 (5320002059596) | 5340-01-656-4589 (5340016564589) | |
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