| 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) | 00-714-8071 (007148071) |
| NCB Code | USA (00) |
| Manufacturer | Army United States Department Of The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | FREE-RUNNING ALL METAL DESIGN |
| AAVX | WASHER OUTSIDE DIAMETER | 2.110 INCHES MINIMUM AND 2.140 INCHES MAXIMUM |
| ABKW | OVERALL HEIGHT | 1.000 INCHES MINIMUM AND 1.015 INCHES MAXIMUM |
| ACTA | NUT STYLE | HEXAGON |
| ADEM | WASHER THICKNESS | 0.391 INCHES MINIMUM AND 0.421 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 1.720 INCHES MINIMUM AND 1.730 INCHES MAXIMUM |
| BZRR | THREAD SERIES | UNF |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| CQFM | HARDNESS RATING | 21.0 ROCKWELL C MINIMUM AND 27.0 ROCKWELL C MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 1.375 INCHES |
| CRSQ | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL NUT |
| FEAT | SPECIAL FEATURES | NO. 63.0 FINISH ON BEARING SURFACE OF WASHER |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A400 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | OXIDE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5310-00-714-8071, 5310007148071 | ||||
| 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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