| 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 | Federal Specifications, Military Standards Corp, United Technologies Corporation |
| 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 | ||||
| 5325-01-474-4172 (5325014744172) | 5305-00-005-0050 (5305000050050) | 5305-01-081-2450 (5305010812450) | 5360-00-248-8834 (5360002488834) | |
| 5340-01-369-8169 (5340013698169) | 5305-00-899-3578 (5305008993578) | 5330-00-593-8695 (5330005938695) | 5305-01-514-9340 (5305015149340) | |
| 5340-01-702-5703 (5340017025703) | 5360-00-920-9595 (5360009209595) | 5340-01-691-6457 (5340016916457) | 5306-01-269-7435 (5306012697435) | |
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