AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Cap Hexagon Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-381-1524 (013811524) |
| NCB Code | USA (01) |
| Manufacturer | United Technologies Corporation, Military Standards Corp, Federal Specifications |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASA | THREAD LENGTH | 0.875 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 1.000 INCHES NOMINAL |
| CQBC | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 TY2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| AAJD | THREAD CLASS | 2A |
| AASK | HEAD STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| CQHQ | MINIMUM YIELD STRENGTH | 120000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL AND CHROMATE OVERALL |
| AASU | HEAD HEIGHT | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J429 GR8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-01-381-1524, 5305013811524 | ||||
| 5365-01-101-3819 (5365011013819) | 5305-01-006-9246 (5305010069246) | 5310-00-639-2818 (5310006392818) | 5310-01-332-9051 (5310013329051) | |
| 5330-01-399-2381 (5330013992381) | 5340-01-496-5144 (5340014965144) | 5342-00-326-6390 (5342003266390) | 5305-01-361-1154 (5305013611154) | |
| 5305-01-516-4729 (5305015164729) | 5330-15-007-8953 (5330150078953) | 5340-01-078-1350 (5340010781350) | 5310-01-471-5429 (5310014715429) | |
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