| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-473-5143 (014735143) |
| NCB Code | USA (01) |
| Manufacturer | Texas Starwares Inc, Bae Systems Tactical Vehicle Systems, Bae Systems Land And Armaments Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | Head Style | FLAT COUNTERSUNK |
| AHYM | Nominal Thread Diameter | 0.500 INCHES |
| AGAV | End Item Identification | 2320-01-354-4528 |
| CRSQ | Countersink Angle | 80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM |
| MATT | Material | STEEL OVERALL |
| SFTT | Surface Treatment | ZINC OVERALL |
| AAJF | Thread Direction | RIGHT-HAND |
| THSD | Thread Series Designator | UNC |
| MRC | Decoded Requirement | Clear Text Reply |
| AASB | Fastener Length | 3.500 INCHES NOMINAL |
| CMLP | Thread Quantity Per Inch | 13 |
| AAJD | Thread Class | 3A |
| AASA | Thread Length | 2.140 INCHES NOMINAL |
| Relevant Components for NSN - 5305-01-473-5143, 5305014735143 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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