AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-139-0838 (011390838) |
| NCB Code | USA (01) |
| Manufacturer | Unison Industries Llc, Military Standards Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.224 INCHES MINIMUM AND 0.264 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE HEXAGON W/ HOLE |
| AASU | HEAD HEIGHT | 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| AATC | EXTENDED WASHER DIAMETER | 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| AATD | EXTENDED WASHER THICKNESS | 0.030 INCHES MINIMUM |
| AAUB | HOLE DIAMETER | 0.047 INCHES NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.138 INCHES |
| ASXK | HOLE QUANTITY | 4 |
| CMLP | THREAD QUANTITY PER INCH | 40 |
| CQBC | MINIMUM TENSILE STRENGTH | 130000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| CYAU | SCREW MATERIAL | IRON ALLOY 660 |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE |
| CYBG | HEAD HOLE CONFIGURATION STYLE | DOUBLE HEXAGON LONGITUDINAL HOLE |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-139-0838, 5305011390838 | ||||
| 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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