AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Nut Self Locking Round |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-764-0972 (007640972) |
| NCB Code | USA (00) |
| Manufacturer | The Boeing Company, Harvard Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| ABPH | SMALL END DIAMETER | 1.640 INCHES MINIMUM AND 1.672 INCHES MAXIMUM |
| ABQU | DRIVE POINT DEPTH | 0.083 INCHES MINIMUM AND 0.108 INCHES MAXIMUM |
| ACTA | NUT STYLE | ROUND |
| ACTD | NUT DIAMETER | 1.891 INCHES MINIMUM AND 1.911 INCHES MAXIMUM |
| ADBG | NUT THICKNESS | 0.376 INCHES MINIMUM AND 0.396 INCHES MAXIMUM |
| BZRR | THREAD SERIES | UNS |
| CQJX | NOMINAL THREAD SIZE | 1.376 INCHES |
| CRSQ | COUNTERSINK ANGLE | 90.0 DEGREES MINIMUM NUT AND 110.0 DEGREES MAXIMUM NUT |
| MATT | MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| MATT | MATERIAL | STEEL COMP 4130 NUT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 103 FSCM 77272 MFR REF 2ND MATERIAL RESPONSE LOCKING INSERT |
| SFTT | SURFACE TREATMENT | OXIDE OVERALL |
| ZZZK | SPECIFICATION/STANDARD DATA | 81205-BACN10GR MANUFACTURERS STANDARD |
| AAJE | THREAD PITCH DIAMETERS | 1.3399/1.3439 INCHES |
| ADBH | DRIVE POINT WIDTH | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM |
| ADBJ | UNDERCUT THICKNESS | 0.054 INCHES MINIMUM AND 0.106 INCHES MAXIMUM |
| ADBM | DRIVE POINT QUANTITY | 4 |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758,COND F,SURFACE COND 4 MIL SPEC 1ST MATERIAL RESPONSE NUT |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5310-00-764-0972, 5310007640972 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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