| Item Name | Bolt Square Neck |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-851-1129 (008511129) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc, Federal Specifications |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASA | THREAD LENGTH | 1.750 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 3.500 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AHYM | NOMINAL THREAD DIAMETER | 0.875 INCHES |
| CQBC | MINIMUM TENSILE STRENGTH | 115000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 22.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| CRSQ | COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| CWXQ | NECK WIDTH | 0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASL | HEAD DIAMETER | 1.406 INCHES MINIMUM AND 1.512 INCHES MAXIMUM |
| AGQB | NECK LENGTH | 0.563 INCHES MINIMUM AND 0.626 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 9 |
| MATT | MATERIAL | STEEL OVERALL |
| Components Related to NSN - 5306-00-851-1129, 5306008511129 | ||||
| 5330-01-334-7310 (5330013347310) | 5365-00-969-6150 (5365009696150) | 5310-01-669-3902 (5310016693902) | 5340-01-413-2057 (5340014132057) | |
| 5325-00-364-9598 (5325003649598) | 5360-00-567-5070 (5360005675070) | 5340-01-491-4788 (5340014914788) | 5340-01-026-3025 (5340010263025) | |
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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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