AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-453-4054 (014534054) |
| NCB Code | USA (01) |
| Manufacturer | Military Specifications, Zf Industrieantriebe Witten Gmbh, Huntington Ingalls Incorporated |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | Head Style | FLAT CHAMFER |
| CQBC | Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH |
| CMLP | Thread Quantity Per Inch | 18 |
| THSD | Thread Series Designator | UNRC |
| AASB | Fastener Length | 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| AASL | Head Diameter | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |
| ABQZ | Internal Drive Style | HEXAGON |
| CQHQ | Minimum Yield Strength | 90000 POUNDS PER SQUARE INCH |
| AASA | Thread Length | 0.609 INCHES MINIMUM |
| AAJF | Thread Direction | RIGHT-HAND |
| AHYM | Nominal Thread Diameter | 0.312 INCHES |
| MATT | Material | PLASTIC POLYAMIDE LOCKING FEATURE |
| MATT | Material | NICKEL ALLOY K-500 FASTENER OR NICKEL ALLOY 502 FASTENER |
| MDCL | Material Document And Classification | QQ-N-286 FED SPEC ALL MATERIAL RESPONSES FASTENER |
| ZZZT | Nondefinitive Spec/Std Data | 2 TYPE AND 500 GRADE |
| AAUM | Locking Feature | PATCH THREADS OR PELLET THREADS OR STRIP THREADS |
| MRC | Decoded Requirement | Clear Text Reply |
| CQFM | Hardness Rating | 24.0 ROCKWELL C MINIMUM FASTENER AND 35.0 ROCKWELL C MAXIMUM FASTENER |
| ASDB | Width Across Flats | 0.250 INCHES NOMINAL |
| AASU | Head Height | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| AAJD | Thread Class | 3A |
| Relevant Components for NSN - 5305-01-453-4054, 5305014534054 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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