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) | 01-478-3397 (014783397) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com, Military Standards Corp, Federal Specifications |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NAS1351-8LL5P | national aerospace standards com | screw cap socket head | RFQ |
| MS16998-96L | military standards corp | screw cap socket head | RFQ |
| FF-S-86 | federal specifications | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | Head Style | FLAT CHAMFER |
| CQBC | Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH |
| CMLP | Thread Quantity Per Inch | 20 |
| SFTT | Surface Treatment | CADMIUM OVERALL |
| MATT | Material | STEEL OVERALL |
| MRC | Decoded Requirement | Clear Text Reply |
| THSD | Thread Series Designator | UNF |
| AASB | Fastener Length | 1.210 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| AAJF | Thread Direction | RIGHT-HAND |
| ABQZ | Internal Drive Style | HEXAGON |
| AHYM | Nominal Thread Diameter | 0.500 INCHES |
| AASL | Head Diameter | 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| CQHQ | Minimum Yield Strength | 130000 POUNDS PER SQUARE INCH |
| AAUM | Locking Feature | PATCH THREADS OR STRIP THREADS |
| AASA | Thread Length | 1.250 INCHES NOMINAL |
| STDC | Surface Treatment Document And Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAJD | Thread Class | 3A |
| CQFM | Hardness Rating | 36.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| ASDB | Width Across Flats | 0.375 INCHES NOMINAL |
| AASU | Head Height | 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| Relevant Components for NSN - 5305-01-478-3397, 5305014783397 | ||||
| 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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