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 | ||||
| 5355-00-582-7370 (5355005827370) | 5340-01-492-4288 (5340014924288) | 5340-00-523-3711 (5340005233711) | 5330-01-275-9444 (5330012759444) | |
| 5340-01-238-2053 (5340012382053) | 5365-01-693-2245 (5365016932245) | 5331-01-258-8240 (5331012588240) | 5365-01-672-1629 (5365016721629) | |
| 5365-01-432-4280 (5365014324280) | 5365-01-654-1906 (5365016541906) | 5340-01-451-0804 (5340014510804) | 5340-01-489-6012 (5340014896012) | |
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