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) | 01-142-8408 (011428408) |
| NCB Code | USA (01) |
| Manufacturer | Boeing Company The, Lisi Aerospace Canada Corp, West Coast Aerospace Inc, Reid Products Inc, Alcoa Global Fasteners Inc, Sps Technologies Inc, Hi Shear Corporation, Fastener Innovation Technology Inc, Huck International Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 3M902C4-13A | boeing company the | screw shoulder | RFQ |
| HT4020-4-13AY | lisi aerospace canada corp | screw shoulder | RFQ |
| WC4020-4-13AY | west coast aerospace inc | screw shoulder | RFQ |
| 11879C4-13A | reid products inc | screw shoulder | RFQ |
| HT4020-4-13AY | alcoa global fasteners inc | screw shoulder | RFQ |
| 3M902C4-13A | alcoa global fasteners inc | screw shoulder | RFQ |
| HT4020-4-13AY | sps technologies inc | screw shoulder | RFQ |
| HT4020-4-13AY | hi shear corporation | screw shoulder | RFQ |
| 3M902C4-13A | fastener innovation technology inc | screw shoulder | RFQ |
| HT4020-4-13AY | huck international inc | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.265 INCHES MINIMUM AND 1.312 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| AASL | HEAD DIAMETER | 0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.058 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.2802 INCHES MINIMUM FIRST SHOULDER AND 0.2807 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.742 INCHES MINIMUM FIRST SHOULDER AND 0.764 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | FURNISHED WITH ONE RUBBER O RING |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-142-8408, 5305011428408 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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