| Item Name | Bolt Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 01-557-0511 (015570511) |
| NCB Code | USA (01) |
| Manufacturer | Fastenal Company, Tuthill Corporation, Mil Cots Corporation, General Dynamics Land Systems Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| FEAT | Special Features | 1/2 INCH - 20 X 5-1/2 INCH GRADE 5 ZINC PLATED HEX CAP SCREW |
| AHYM | Nominal Thread Diameter | 0.500 INCHES |
| AATB | Width Between Flats | 0.750 INCHES MAXIMUM |
| AASK | Head Style | HEXAGON |
| MATT | Material | STEEL OVERALL |
| MRC | Decoded Requirement | Clear Text Reply |
| THSD | Thread Series Designator | UNF |
| AAJF | Thread Direction | RIGHT-HAND |
| CMLP | Thread Quantity Per Inch | 20 |
| AAJD | Thread Class | 2A |
| SFTT | Surface Treatment | ZINC OVERALL |
| AASA | Thread Length | 1.250 INCHES NOMINAL |
| MDCL | Material Document And Classification | SAE J429 GRADE 5 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| AASB | Fastener Length | 5.500 INCHES NOMINAL |
| AASU | Head Height | 0.323 INCHES MAXIMUM |
| Relevant Components for NSN - 5306-01-557-0511, 5306015570511 | ||||
| 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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