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) | 01-330-0452 (013300452) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com, Federal Specifications, Military Standards Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS24678-55 | national aerospace standards com | screw cap socket head | RFQ |
| FF-S-86 | federal specifications | screw cap socket head | RFQ |
| MS24678-55 | military standards corp | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ASXK | HOLE QUANTITY | 3 |
| CQFM | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AASA | THREAD LENGTH | 1.340 INCHES MINIMUM AND 1.440 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.440 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.642 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| ASDB | WIDTH ACROSS FLATS | 0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |
| CRHC | HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON |
| MATT | MATERIAL | STEEL OVERALL |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 6 TYPE |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASU | HEAD HEIGHT | 0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.438 INCHES |
| BQDM | HOLE TYPE | DRILLED |
| AAJD | THREAD CLASS | 3A |
| AASK | HEAD STYLE | FLAT CHAMFER |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-01-330-0452, 5305013300452 | ||||
| 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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