AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-631-1244 (016311244) |
| NCB Code | USA (01) |
| Manufacturer | Textron Fastening Systems Ltd, General Dynamics Land Systems Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AHYM | Nominal Thread Diameter | 0.3125 INCHES |
| MATT | Material | STEEL COMP 4037 OVERALL |
| CMLP | Thread Quantity Per Inch | 18 |
| CXCY | Part Name Assigned By Controlling Agency | SCREW, SOCKET BUTTON HEAD |
| AASB | Fastener Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| HUES | Color | YELLOW OVERALL |
| MRC | Decoded Requirement | Clear Text Reply |
| AAJF | Thread Direction | RIGHT-HAND |
| ABQZ | Internal Drive Style | TORX |
| AASL | Head Diameter | 0.527 INCHES MINIMUM AND 0.547 INCHES MAXIMUM |
| MDCL | Material Document And Classification | SAE J429 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | Surface Treatment | ZINC OVERALL |
| AASA | Thread Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| THSD | Thread Series Designator | UNRC |
| STDC | Surface Treatment Document And Classification | ASTM B633, TYPE V ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| AAJD | Thread Class | 3A |
| AASK | Head Style | BUTTON |
| AASU | Head Height | 0.159 INCHES NOMINAL |
| Relevant Components for NSN - 5305-01-631-1244, 5305016311244 | ||||
| 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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