| Item Name | Nut Plain Round |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-737-4321 (007374321) |
| NCB Code | USA (00) |
| Manufacturer | General Motors Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ABQU | DRIVE POINT DEPTH | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM |
| ACTD | NUT DIAMETER | 2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM |
| ADBG | NUT THICKNESS | 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM |
| ADBH | DRIVE POINT WIDTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| ADBM | DRIVE POINT QUANTITY | 4 |
| ALET | HOLE TYPE AND QUANTITY | 1 TAPPED |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 1.688 INCHES |
| CRSQ | COUNTERSINK ANGLE | 89.0 DEGREES MINIMUM NUT AND 91.0 DEGREES MAXIMUM NUT |
| CSPF | HOLE NOMINAL THREAD DIAMETER | 0.190 INCHES |
| MATT | MATERIAL | STEEL COMP 1137 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE MANGANESE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TY M,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| ACTA | NUT STYLE | ROUND |
| BZRR | THREAD SERIES | UN |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| CQTW | HOLE THREAD QUANTITY PER INCH | 24 |
| CRHC | HOLE CONFIGURATION STYLE | CONFIGURATION J |
| Relevant Components for NSN - 5310-00-737-4321, 5310007374321 | ||||
| 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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