| 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) | 00-915-9988 (009159988) |
| NCB Code | USA (00) |
| Manufacturer | Precision Machine Products Inc, United Technologies Corporation, Royson Engineering Company, Turbo Power And Marine System Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJE | THREAD PITCH DIAMETERS | 3.6469/3.6525 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAWY | COUNTERBORE DIAMETER | 3.715 INCHES NOMINAL NUT |
| ABPH | SMALL END DIAMETER | 3.930 INCHES NOMINAL |
| ABQU | DRIVE POINT DEPTH | 0.220 INCHES NOMINAL |
| ACTA | NUT STYLE | ROUND |
| ACTD | NUT DIAMETER | 4.200 INCHES NOMINAL |
| ADBG | NUT THICKNESS | 0.670 INCHES NOMINAL |
| ADBH | DRIVE POINT WIDTH | 0.375 NOMINAL MILS AND 0.380 NOMINAL CENTIMETERS |
| ADBJ | UNDERCUT THICKNESS | 0.200 NOMINAL INCHES |
| ADBM | DRIVE POINT QUANTITY | 14 |
| ADFK | NUT COUNTERBORE DEPTH | 0.100 INCHES NOMINAL NUT |
| BZRR | THREAD SERIES | UNS |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 3.688 INCHES |
| CRSQ | COUNTERSINK ANGLE | 30.0 DEGREES NOMINAL NUT |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL OR SILVER OVERALL |
| Relevant Components for NSN - 5310-00-915-9988, 5310009159988 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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