| Item Name | Bolt Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-857-2491 (008572491) |
| NCB Code | USA (00) |
| Manufacturer | Sweetland Co, Parker Hannifin Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.370 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 2.750 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.875 INCHES NOMINAL |
| AATX | SHOULDER LENGTH | 2.380 INCHES NOMINAL FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.125 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.5565 INCHES MINIMUM FIRST SHOULDER AND 0.5575 INCHES MAXIMUM FIRST SHOULDER |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.630 INCHES NOMINAL FIRST HOLE |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMIUM OVERALL |
| Components Related to NSN - 5306-00-857-2491, 5306008572491 | ||||
| 5310-01-086-7875 (5310010867875) | 5306-01-626-1829 (5306016261829) | 5365-01-633-9077 (5365016339077) | 5355-00-870-0653 (5355008700653) | |
| 5330-00-143-3535 (5330001433535) | 5330-00-631-8220 (5330006318220) | 5305-01-696-3523 (5305016963523) | 5305-01-275-0515 (5305012750515) | |
| 5331-01-398-8586 (5331013988586) | 5325-01-608-8422 (5325016088422) | 5306-01-646-1547 (5306016461547) | 5360-01-651-5511 (5360016515511) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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