| Item Name | Bolt Ribbed Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-471-0788 (004710788) |
| NCB Code | USA (00) |
| Manufacturer | Ford Motor Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.690 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 0.890 INCHES MINIMUM AND 0.910 INCHES MAXIMUM |
| AASK | HEAD STYLE | PAN NO. 2 |
| AASL | HEAD DIAMETER | 0.500 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.090 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.203 INCHES MINIMUM FIRST SHOULDER AND 0.209 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.200 INCHES MINIMUM FIRST SHOULDER AND 0.220 INCHES MAXIMUM FIRST SHOULDER |
| AAVP | RIB MAJOR DIAMETER | 0.203 INCHES MINIMUM AND 0.209 INCHES MAXIMUM |
| AAVQ | RIB LENGTH | 0.180 INCHES NOMINAL |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.020 INCHES NOMINAL |
| AAVT | RIB MINOR DIAMETER | 0.192 INCHES NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CWYB | SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ESS-1A170-B GR 5.1 FSCM 26377 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Components Related to NSN - 5306-00-471-0788, 5306004710788 | ||||
| 5325-01-017-8809 (5325010178809) | 5330-01-278-3019 (5330012783019) | 5365-01-304-3832 (5365013043832) | 5305-15-060-1487 (5305150601487) | |
| 5305-01-361-3193 (5305013613193) | 5330-01-259-4088 (5330012594088) | 5340-01-672-8342 (5340016728342) | 5342-00-452-9798 (5342004529798) | |
| 5310-01-175-0629 (5310011750629) | 5330-01-120-4149 (5330011204149) | 5331-01-441-4577 (5331014414577) | 5330-01-425-8795 (5330014258795) | |
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