| Item Name | Bolt Ribbed Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 01-202-6850 (012026850) |
| NCB Code | USA (01) |
| Manufacturer | Caterpillar Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 1.550 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
| AATX | SHOULDER LENGTH | 0.220 INCHES MINIMUM SECOND SHOULDER AND 0.280 INCHES MAXIMUM SECOND SHOULDER |
| AAVQ | RIB LENGTH | 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.160 INCHES MINIMUM AND 0.220 INCHES MAXIMUM |
| AAVU | RIB QUANTITY | 29 |
| AHYM | NOMINAL THREAD DIAMETER | 0.750 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5306-01-202-6850, 5306012026850 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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