| Item Name | Nut Self Locking Ex |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-517-1886 (005171886) |
| NCB Code | USA (00) |
| Manufacturer | Army United States Department Of The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | FREE-RUNNING ALL METAL DESIGN |
| AAVX | WASHER OUTSIDE DIAMETER | 4.047 INCHES MINIMUM AND 4.078 INCHES MAXIMUM |
| ABKW | OVERALL HEIGHT | 2.172 INCHES MINIMUM AND 2.203 INCHES MAXIMUM |
| ACTA | NUT STYLE | HEXAGON |
| ADEM | WASHER THICKNESS | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 3.484 INCHES MINIMUM AND 3.500 INCHES MAXIMUM |
| BZRR | THREAD SERIES | UN |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| CQFM | HARDNESS RATING | 27.0 ROCKWELL C NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 2.250 INCHES |
| FEAT | SPECIAL FEATURES | SIX EQUALLY SPACED SLOTS LOCATED THROUGH HEX FLATS |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| Components Related to NSN - 5310-00-517-1886, 5310005171886 | ||||
| 5320-01-625-8117 (5320016258117) | 5305-01-643-3347 (5305016433347) | 5365-01-122-8885 (5365011228885) | 5330-01-382-8170 (5330013828170) | |
| 5360-00-551-6874 (5360005516874) | 5306-01-044-5191 (5306010445191) | 5365-00-888-2513 (5365008882513) | 5305-00-282-0282 (5305002820282) | |
| 5310-01-201-3707 (5310012013707) | 5310-00-814-4076 (5310008144076) | 5342-00-200-5894 (5342002005894) | 5310-01-068-8899 (5310010688899) | |
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