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) | 01-646-1699 (016461699) |
| 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 |
| B1831BH120140L | american national standards | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASU | Head Height | 11.7 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM |
| CXCY | Part Name Assigned By Controlling Agency | SCREW CAP HEXAGON SOCKET HEAD (METRIC) |
| AASB | Fastener Length | 140.0 MILLIMETERS NOMINAL |
| AASA | Thread Length | 36.0 MILLIMETERS MINIMUM AND 44.8 MILLIMETERS MAXIMUM |
| AASL | Head Diameter | 17.6 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM |
| ABQZ | Internal Drive Style | HEXAGON |
| MATT | Material | STEEL PROPERTY CLASS 12.9 OVERALL |
| AGAV | End Item Identification | ENGINE, DIESEL |
| MRC | Decoded Requirement | Clear Text Reply |
| THSD | Thread Series Designator | ISO M |
| CQWR | External Thread Tolerance Class | 4G6G |
| AAJF | Thread Direction | RIGHT-HAND |
| AHYM | Nominal Thread Diameter | 12.0 MILLIMETERS |
| AAUM | Locking Feature | PELLET OR STRIP OR PATCH THREADS |
| CQQR | Thread Pitch In Millimeters | 1.75 |
| ASDB | Width Across Flats | 10.0 MILLIMETERS NOMINAL |
| AASK | Head Style | FLAT CHAMFER |
| Relevant Components for NSN - 5305-01-646-1699, 5305016461699 | ||||
| 5365-00-981-3580 (5365009813580) | 5306-01-663-0372 (5306016630372) | 5330-00-259-1415 (5330002591415) | 5340-00-140-8006 (5340001408006) | |
| 5310-01-055-6080 (5310010556080) | 5340-01-571-9066 (5340015719066) | 5360-01-528-5575 (5360015285575) | 5340-01-254-4525 (5340012544525) | |
| 5310-01-456-0920 (5310014560920) | 5331-01-311-6975 (5331013116975) | 5330-00-147-6676 (5330001476676) | 5365-01-201-0770 (5365012010770) | |
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