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) | 01-474-6961 (014746961) |
| NCB Code | USA (01) |
| Manufacturer | Roller Bearing Company Of America |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A" |
| AAJF | THREAD DIRECTION | RIGHT-HAND" |
| AASA | THREAD LENGTH | 0.188 INCHES NOMINAL" |
| AASB | FASTENER LENGTH | 0.688 INCHES MINIMUM AND 0.690 INCHES MAXIMUM" |
| AASK | HEAD STYLE | FLAT CHAMFER" |
| AASL | HEAD DIAMETER | 0.312 INCHES NOMINAL" |
| AASU | HEAD HEIGHT | 0.156 INCHES NOMINAL" |
| AATN | SHOULDER DIAMETER | 0.186 INCHES MINIMUM FIRST SHOULDER AND 0.187 INCHES MAXIMUM FIRST SHOULDER" |
| AATX | SHOULDER LENGTH | 0.500 INCHES MINIMUM FIRST SHOULDER AND 0.502 INCHES MAXIMUM FIRST SHOULDER" |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON" |
| AHYM | NOMINAL THREAD DIAMETER | 0.164 INCHES" |
| ASDB | WIDTH ACROSS FLATS | 0.094 INCHES NOMINAL" |
| CMLP | THREAD QUANTITY PER INCH | 32" |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER" |
| MATT | MATERIAL | STEEL COMP 416 OVERALL" |
| THSD | THREAD SERIES DESIGNATOR | UNC" |
| AAJD | THREAD CLASS | 2A" |
| AAJF | THREAD DIRECTION | RIGHT-HAND" |
| AASA | THREAD LENGTH | 0.188 INCHES NOMINAL" |
| AASB | FASTENER LENGTH | 0.688 INCHES MINIMUM AND 0.690 INCHES MAXIMUM" |
| AASK | HEAD STYLE | FLAT CHAMFER" |
| AASL | HEAD DIAMETER | 0.312 INCHES NOMINAL" |
| AASU | HEAD HEIGHT | 0.156 INCHES NOMINAL" |
| AATN | SHOULDER DIAMETER | 0.186 INCHES MINIMUM FIRST SHOULDER AND 0.187 INCHES MAXIMUM FIRST SHOULDER" |
| AATX | SHOULDER LENGTH | 0.500 INCHES MINIMUM FIRST SHOULDER AND 0.502 INCHES MAXIMUM FIRST SHOULDER" |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON" |
| AHYM | NOMINAL THREAD DIAMETER | 0.164 INCHES" |
| ASDB | WIDTH ACROSS FLATS | 0.094 INCHES NOMINAL" |
| CMLP | THREAD QUANTITY PER INCH | 32" |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER" |
| MATT | MATERIAL | STEEL COMP 416 OVERALL" |
| THSD | THREAD SERIES DESIGNATOR | UNC" |
| Relevant Components for NSN - 5305-01-474-6961, 5305014746961 | ||||
| 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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