AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Externally Relieved Body |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-208-1596 (002081596) |
| NCB Code | USA (00) |
| Manufacturer | Hiller Aircraft Corporation, Helicopter Parts Service Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.170 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.150 INCHES MINIMUM AND 1.160 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE CHAMFER |
| AASL | HEAD DIAMETER | 0.682 INCHES MINIMUM AND 0.685 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE |
| AAWC | FIRST DIAMETER FROM HEAD | 0.4785 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM |
| AAWD | SECOND DIAMETER FROM HEAD | 0.4985 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM |
| AAWE | THIRD DIAMETER FROM HEAD | 0.422 INCHES MINIMUM AND 0.432 INCHES MAXIMUM |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| AAWJ | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.840 INCHES MINIMUM AND 0.860 INCHES MAXIMUM |
| AAWK | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.910 INCHES MINIMUM AND 0.950 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.027 INCHES NOMINAL FIRST HOLE |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| FEAT | SPECIAL FEATURES | LETTERED (S) ON HEAD |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL OR STEEL COMP 8740 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM HEAD |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE HEAD |
| TEST | TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS,BROCHURES,ETC.,THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS,INDUSTRY DIRECTORIES,AND SIMILAR TRADE PUBLICATIONS,REFLECTIN |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-208-1596, 5305002081596 | ||||
| 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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