AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-657-9039 (016579039) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.35 INCHES MINIMUM AND 0.38 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.35 INCHES MINIMUM AND 0.38 INCHES MAXIMUM |
| AASK | HEAD STYLE | ROUND EXTENDED WASHER |
| AASL | HEAD DIAMETER | 0.343 INCHES MINIMUM AND 0.363 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.085 INCHES MINIMUM AND 0.105 INCHES MAXIMUM |
| AATC | EXTENDED WASHER DIAMETER | 0.413 INCHES MINIMUM AND 0.443 INCHES MAXIMUM |
| AATD | EXTENDED WASHER THICKNESS | 0.030 INCHES MINIMUM AND 0.037 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AHYM | NOMINAL THREAD DIAMETER | 0.1900 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CXCY | III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, MACHINE |
| CYAU | SCREW MATERIAL | STEEL COMP 4340 OR STEEL COMP 8740 |
| CYAY | BEARING SURFACE OF HEAD SURFACE TREATMENT | CADMIUM |
| CYAZ | HEAD SURFACE TREATMENT | CADMIUM |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM |
| CYBB | SHANK SURFACE TREATMENT | CADMIUM |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-657-9039, 5305016579039 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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