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 | ||||
| 5331-01-657-5231 (5331016575231) | 5330-01-205-4045 (5330012054045) | 5315-01-471-7425 (5315014717425) | 5340-01-529-8563 (5340015298563) | |
| 5365-01-410-8416 (5365014108416) | 5310-00-021-9774 (5310000219774) | 5330-01-647-7489 (5330016477489) | 5310-01-197-3340 (5310011973340) | |
| 5365-00-958-7449 (5365009587449) | 5340-01-481-5050 (5340014815050) | 5310-00-619-4502 (5310006194502) | 5340-00-293-6497 (5340002936497) | |
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