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) | 01-646-1866 (016461866) |
| NCB Code | USA (01) |
| Manufacturer | American National Standards |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| B18.3.1M | american national standards | screw cap socket head | RFQ |
| B1831BH120160L | american national standards | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 36.0 MILLIMETERS MINIMUM AND 44.8 MILLIMETERS MAXIMUM |
| AASB | FASTENER LENGTH | 160.0 MILLIMETERS NOMINAL |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 17.6 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM |
| AASU | HEAD HEIGHT | 11.7 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM |
| AAUM | LOCKING FEATURE | STRIP OR PELLET OR PATCH THREADS |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AGAV | III END ITEM IDENTIFICATION | ENGINE, DIESEL |
| AHYM | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| ASDB | WIDTH ACROSS FLATS | 12.03 MILLIMETERS MINIMUM AND 12.14 MILLIMETERS MAXIMUM |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.75 |
| CQWR | EXTERNAL THREAD TOLERANCE CLASS | 4G6G |
| CXCY | III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW CAP HEXAGON SOCKET HEAD (METRIC) |
| MATT | MATERIAL | STEEL PROPERTY CLASS 12.9 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | ISO M |
| Relevant Components for NSN - 5305-01-646-1866, 5305016461866 | ||||
| 5305-00-825-1285 (5305008251285) | 5315-01-177-1845 (5315011771845) | 5340-01-536-0624 (5340015360624) | 5330-01-398-3824 (5330013983824) | |
| 5365-00-602-2520 (5365006022520) | 5340-01-658-6711 (5340016586711) | 5306-00-488-7520 (5306004887520) | 5310-00-443-4905 (5310004434905) | |
| 5305-00-579-4230 (5305005794230) | 5306-01-488-3599 (5306014883599) | 5340-01-429-0378 (5340014290378) | 5305-01-208-9074 (5305012089074) | |
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