AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-858-5558 (008585558) |
| NCB Code | USA (00) |
| Manufacturer | Cecom Lr Center, Military Standards Corp, Eme Elektro Metall Export Gmbh, Engineered Arresting Systems, Inspektorat Wsparcia Sil Zbrojnych, National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| V08-005-014 | cecom lr center | screw shoulder | RFQ |
| MS51975-55 | military standards corp | screw shoulder | RFQ |
| 52E211-2 | eme elektro metall export gmbh | screw shoulder | RFQ |
| 52E211-2 | engineered arresting systems | screw shoulder | RFQ |
| 5305PL0815636 | inspektorat wsparcia sil zbrojnych | screw shoulder | RFQ |
| MS51975-55 | national aerospace standards com | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AATN | SHOULDER DIAMETER | 0.746 INCHES MINIMUM FIRST SHOULDER AND 0.748 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| ASDB | WIDTH ACROSS FLATS | 0.375 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 11 |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 3A |
| AASA | THREAD LENGTH | 0.845 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 2.845 INCHES MINIMUM AND 2.875 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.977 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AATX | SHOULDER LENGTH | 2.000 INCHES NOMINAL FIRST SHOULDER |
| AHYM | NOMINAL THREAD DIAMETER | 0.625 INCHES |
| CQBC | MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND DICHROMATE OVERALL |
| Relevant Components for NSN - 5305-00-858-5558, 5305008585558 | ||||
| 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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