| Item Name | Screw Cap Hexagon Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-228-0556 (012280556) |
| NCB Code | USA (01) |
| Manufacturer | Dorman Products Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 29.1 MILLIMETERS MINIMUM AND 30.4 MILLIMETERS MAXIMUM |
| AASB | FASTENER LENGTH | 29.60 MILLIMETERS MINIMUM AND 30.40 MILLIMETERS MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 7.24 MILLIMETERS MINIMUM AND 7.76 MILLIMETERS MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 17.73 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| CQBC | MINIMUM TENSILE STRENGTH | 116000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.75 |
| MATT | MATERIAL | STEEL PROPERTY CLASS 8.8 OVERALL |
| SFTT | SURFACE TREATMENT | ZINC AND DICHROMATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | M |
| Relevant Components for NSN - 5305-01-228-0556, 5305012280556 | ||||
| 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) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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