| Item Name | Screw Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-878-6303 (008786303) |
| NCB Code | USA (00) |
| Manufacturer | British Standards Institution, Martin Baker Aircraft Co Ltd |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| CRSQ | COUNTERSINK ANGLE | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| CYAU | SCREW MATERIAL | STEEL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.560 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.625 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.242 INCHES MINIMUM AND 0.252 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 3.6 MILLIMETERS |
| CQBC | MINIMUM TENSILE STRENGTH | 50000 POUNDS PER SQUARE INCH |
| CQQR | THREAD PITCH IN MILLIMETERS | 0.66 |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM |
| CYBE | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DTD 904 FED STD SINGLE TREATMENT RESPONSE |
| THSD | THREAD SERIES DESIGNATOR | BA |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| Relevant Components for NSN - 5305-00-878-6303, 5305008786303 | ||||
| 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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