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) | 01-025-4374 (010254374) |
| NCB Code | USA (01) |
| Manufacturer | Air Industries Corp, Tlt Babcock Inc, Zf Industrieantriebe Witten Gmbh, Sps Technologies Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| AC129436 | air industries corp | screw shoulder | RFQ |
| AC129436 | tlt babcock inc | screw shoulder | RFQ |
| 12705L5C24 | zf industrieantriebe witten gmbh | screw shoulder | RFQ |
| AC-331336 | zf industrieantriebe witten gmbh | screw shoulder | RFQ |
| AC129436 | sps technologies inc | screw shoulder | RFQ |
| 12705L-5C-24 | sps technologies inc | screw shoulder | RFQ |
| AC-3313-36 | tlt babcock inc | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.342 INCHES MINIMUM AND 0.362 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.914 INCHES MINIMUM AND 1.940 INCHES MAXIMUM |
| AASK | HEAD STYLE | KNURLED NO. 1 |
| AASL | HEAD DIAMETER | 0.419 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.213 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.310 INCHES MINIMUM FIRST SHOULDER AND 0.311 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.497 INCHES MINIMUM FIRST SHOULDER AND 1.503 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ASDB | WIDTH ACROSS FLATS | 0.156 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | STRIP TYPE LOCKING ELEMENT ON THREADS |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNRC |
| Relevant Components for NSN - 5305-01-025-4374, 5305010254374 | ||||
| 5305-01-642-0405 (5305016420405) | 5340-01-469-1045 (5340014691045) | 5315-01-562-5736 (5315015625736) | 5315-01-575-7397 (5315015757397) | |
| 5310-00-347-0214 (5310003470214) | 5320-01-073-2961 (5320010732961) | 5342-01-117-9590 (5342011179590) | 5355-00-201-5369 (5355002015369) | |
| 5305-01-321-3806 (5305013213806) | 5330-00-256-6918 (5330002566918) | 5365-01-625-0045 (5365016250045) | 5310-01-593-4780 (5310015934780) | |
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