| Item Name | Screw Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-437-4287 (004374287) |
| NCB Code | USA (00) |
| Manufacturer | British Standards Institution |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.410 INCHES MINIMUM AND 0.490 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.750 INCHES MINIMUM AND 0.790 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.319 INCHES MINIMUM AND 0.324 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 4.7 MILLIMETERS |
| CQQR | THREAD PITCH IN MILLIMETERS | 0.81 |
| CYAU | SCREW MATERIAL | STEEL CORROSION RESISTING |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | BS S.114 FED STD SINGLE MATERIAL RESPONSE OR BS S.95 FED STD SINGLE MATERIAL RESPONSE OR BS S.94 FED STD SINGLE MATERIAL RESPONSE OR BS S. 96 FED STD SINGLE MATERIAL RESPONSE |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM |
| CYBE | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | D.T.D.904,FSCM 05901 MFR REF SINGLE TREATMENT RESPONSE |
| THSD | THREAD SERIES DESIGNATOR | BA |
| Relevant Components for NSN - 5305-00-437-4287, 5305004374287 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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