| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-568-1093 (015681093) |
| NCB Code | USA (01) |
| Manufacturer | Emhart Teknologies Inc, Hi Shear Corporation, West Coast Aerospace Inc, Reid Products Inc, Huck International Inc, Alcoa Global Fasteners Inc, Sps Technologies Ltd, The Boeing Company |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| ST3M496-7-21 | emhart teknologies inc | screw shoulder | RFQ |
| HT4008-7-21 | hi shear corporation | screw shoulder | RFQ |
| WC4008-7-21 | west coast aerospace inc | screw shoulder | RFQ |
| 11913-7-21 | reid products inc | screw shoulder | RFQ |
| HT4008-7-21 | huck international inc | screw shoulder | RFQ |
| HT4008-7-21 | alcoa global fasteners inc | screw shoulder | RFQ |
| HT4008-7-21 | sps technologies ltd | screw shoulder | RFQ |
| ST3M496-7-21 | the boeing company | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.599 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.730 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.880 INCHES MINIMUM AND 0.890 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.452 INCHES MINIMUM FIRST SHOULDER AND 0.453 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.052 INCHES MINIMUM FIRST SHOULDER AND 1.072 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.437 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW CLOSE TOLERANCE |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-568-1093, 5305015681093 | ||||
| 5365-99-998-9980 (5365999989980) | 5365-99-998-9265 (5365999989265) | 5365-99-997-1598 (5365999971598) | 5365-99-996-9236 (5365999969236) | |
| 5365-99-994-0353 (5365999940353) | 5365-99-994-0176 (5365999940176) | 5365-99-992-1527 (5365999921527) | 5365-99-990-8469 (5365999908469) | |
| 5365-99-989-0900 (5365999890900) | 5365-99-987-5556 (5365999875556) | 5365-99-983-0520 (5365999830520) | 5365-99-979-8712 (5365999798712) | |
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