| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-256-5800 (012565800) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.323 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.620 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.266 INCHES MINIMUM AND 0.303 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | TRI-WING RECESS |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| ANEE | GRIP LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000,UNS G43406 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL OR MIL-S-6049,UNS G87400 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SUPP | SUPPLEMENTARY FEATURES | TRI-WING RECESS NO. NAS4000-4 |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS4703 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Components Related to NSN - 5305-01-256-5800, 5305012565800 | ||||
| 5320-01-288-0602 (5320012880602) | 5315-01-595-1361 (5315015951361) | 5310-01-425-6377 (5310014256377) | 5330-00-128-1254 (5330001281254) | |
| 5330-01-540-2102 (5330015402102) | 5310-01-661-3334 (5310016613334) | 5320-01-255-7970 (5320012557970) | 5330-01-103-2439 (5330011032439) | |
| 5365-00-115-6523 (5365001156523) | 5306-01-431-2275 (5306014312275) | 5330-01-476-3266 (5330014763266) | 5355-01-113-6386 (5355011136386) | |
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