| 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 | General Dynamics Land Systems Inc, Textron Fastening Systems |
| 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 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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