| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-558-7985 (005587985) |
| NCB Code | USA (00) |
| Manufacturer | Aeronautical Standards Group |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.489 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.295 INCHES MINIMUM AND 0.315 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.046 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| ASDB | WIDTH ACROSS FLATS | 0.251 INCHES MINIMUM AND 0.253 INCHES MAXIMUM |
| ASXK | HOLE QUANTITY | 6 |
| BQDM | HOLE TYPE | DRILLED |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| CRHC | HOLE CONFIGURATION STYLE | ROUND |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Components Related to NSN - 5305-00-558-7985, 5305005587985 | ||||
| 5330-01-334-7310 (5330013347310) | 5365-00-969-6150 (5365009696150) | 5310-01-669-3902 (5310016693902) | 5340-01-413-2057 (5340014132057) | |
| 5325-00-364-9598 (5325003649598) | 5360-00-567-5070 (5360005675070) | 5340-01-491-4788 (5340014914788) | 5340-01-026-3025 (5340010263025) | |
| 5365-01-155-7183 (5365011557183) | 5355-00-492-8457 (5355004928457) | 5365-00-145-1236 (5365001451236) | 5307-00-245-8721 (5307002458721) | |
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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