AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Thumbscrew |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-255-5481 (002555481) |
| NCB Code | USA (00) |
| Manufacturer | Lockheed Martin Corporation, Catty H D Corp, Carr Lane Manufacturing Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AASA | THREAD LENGTH | 0.547 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 1.031 INCHES NOMINAL |
| AASK | HEAD STYLE | KNURLED NO. 1 |
| AASL | HEAD DIAMETER | 1.000 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.312 INCHES NOMINAL |
| AAUY | POINT LENGTH | 0.359 INCHES NOMINAL |
| AAVA | POINT DIAMETER | 0.375 INCHES NOMINAL |
| ABQJ | POINT STYLE | UNIVERSAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CTLL | POINT SWIVEL INCLUDED ANGLE | 40.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-00-255-5481, 5305002555481 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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