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) | 00-808-2581 (008082581) |
| NCB Code | USA (00) |
| Manufacturer | Nimikkeistokeskus Ncb Finland, National Aerospace Standards Com, Federal Specifications |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.339 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.156 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 56 |
| CQBC | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-7720 COMP 303S MIL SPEC 2ND MATERIAL RESPONSE OR QQ-S-763 CL 321 FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-763 CL 347 FED SPEC 4TH MATERIAL RESPONSE |
| CYBA | SCREW SURFACE TREATMENT | PASSIVATE |
| CYBE | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AASB | FASTENER LENGTH | 0.375 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.086 INCHES |
| Relevant Components for NSN - 5305-00-808-2581, 5305008082581 | ||||
| 5365-00-981-3580 (5365009813580) | 5306-01-663-0372 (5306016630372) | 5330-00-259-1415 (5330002591415) | 5340-00-140-8006 (5340001408006) | |
| 5310-01-055-6080 (5310010556080) | 5340-01-571-9066 (5340015719066) | 5360-01-528-5575 (5360015285575) | 5340-01-254-4525 (5340012544525) | |
| 5310-01-456-0920 (5310014560920) | 5331-01-311-6975 (5331013116975) | 5330-00-147-6676 (5330001476676) | 5365-01-201-0770 (5365012010770) | |
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