AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-527-9452 (015279452) |
| NCB Code | USA (01) |
| Manufacturer | Hi Shear Corporation, Lisi Aerospace Canada Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AHYM | Nominal Thread Diameter | 0.250 INCHES |
| MATT | Material | STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4130 OVERALL |
| AASK | Head Style | FLAT COUNTERSUNK |
| ANEE | Grip Length | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM |
| SFTT | Surface Treatment | CADMIUM OVERALL |
| CSYM | Surface Finish | 63.0 MICROINCHES THREADS |
| THSD | Thread Series Designator | UNF |
| AASA | Thread Length | 0.318 INCHES NOMINAL |
| CQBC | Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH |
| ABQZ | Internal Drive Style | HIGH-TORQUE |
| AASB | Fastener Length | 1.006 INCHES NOMINAL |
| AASL | Head Diameter | 0.389 INCHES MINIMUM AND 0.394 INCHES MAXIMUM |
| AAJF | Thread Direction | RIGHT-HAND |
| MRC | Decoded Requirement | Clear Text Reply |
| CSYM | Surface Finish | 63.0 MICROINCHES GRIP |
| CRSQ | Countersink Angle | 100.0 DEGREES NOMINAL |
| AAUR | Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| CMLP | Thread Quantity Per Inch | 28 |
| STDC | Surface Treatment Document And Classification | QQ-P-416, TY 1, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAJD | Thread Class | 3A |
| Relevant Components for NSN - 5305-01-527-9452, 5305015279452 | ||||
| 5305-00-825-1285 (5305008251285) | 5315-01-177-1845 (5315011771845) | 5340-01-536-0624 (5340015360624) | 5330-01-398-3824 (5330013983824) | |
| 5365-00-602-2520 (5365006022520) | 5340-01-658-6711 (5340016586711) | 5306-00-488-7520 (5306004887520) | 5310-00-443-4905 (5310004434905) | |
| 5305-00-579-4230 (5305005794230) | 5306-01-488-3599 (5306014883599) | 5340-01-429-0378 (5340014290378) | 5305-01-208-9074 (5305012089074) | |
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