AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-144-4761 (011444761) |
| NCB Code | USA (01) |
| Manufacturer | Houston Precision Fastener L L C, Huck International Inc, Fastener Innovation Technology Inc, Atotech Usa Inc, Sps Technologies Inc, Boeing Company The, Lisi Aerospace Canada Corp, Alcoa Global Fasteners Inc, Hi Shear Corporation, West Coast Aerospace Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| ST3M506-3-20-1 | houston precision fastener l l c | screw shoulder | RFQ |
| HT4016-3-20Y | huck international inc | screw shoulder | RFQ |
| ST3M506-3-20-1 | fastener innovation technology inc | screw shoulder | RFQ |
| ST3M506-3-20-1 | atotech usa inc | screw shoulder | RFQ |
| HT4016-3-20Y | sps technologies inc | screw shoulder | RFQ |
| ST3M506-3-20-1 | boeing company the | screw shoulder | RFQ |
| HT4016-3-204 | huck international inc | screw shoulder | RFQ |
| ST3M506-3-20-1 | sps technologies inc | screw shoulder | RFQ |
| HT4016-3-20Y | lisi aerospace canada corp | screw shoulder | RFQ |
| HT4016-3-20Y | alcoa global fasteners inc | screw shoulder | RFQ |
| ST3M506-3-20-1 | alcoa global fasteners inc | screw shoulder | RFQ |
| HT4016-3-20Y | hi shear corporation | screw shoulder | RFQ |
| WC4011-3-20-1 | west coast aerospace inc | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.306 INCHES MINIMUM AND 0.356 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.566 INCHES MINIMUM AND 1.596 INCHES MAXIMUM |
| AASK | HEAD STYLE | OVAL COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.3275 INCHES MINIMUM AND 0.3325 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.2177 INCHES MINIMUM FIRST SHOULDER AND 0.2182 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.190 INCHES MINIMUM FIRST SHOULDER AND 1.218 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | INTERNAL HEXAGON SOCKET IN THREADED END 0.0791 IN. MIN AND 0.0806 IN. MAX WIDTH ACROSS FLATS |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-144-4761, 5305011444761 | ||||
| 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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