| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-018-5590 (010185590) |
| NCB Code | USA (01) |
| Manufacturer | Atlantic Inertial Systems Limited |
| MRC | Criteria | Characteristic |
|---|---|---|
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| MATT | MATERIAL | STEEL COMP 4037 OVERALL |
| SFTT | SURFACE TREATMENT | OXIDE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.089 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 0.125 INCHES NOMINAL |
| AASK | HEAD STYLE | BUTTON |
| AASL | HEAD DIAMETER | 0.154 INCHES MINIMUM AND 0.164 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM |
| AAUH | SPLINE MINOR DIAMETER | 0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM |
| AAUJ | SPLINE MAJOR DIAMETER | 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM |
| AAUK | SPLINE WIDTH | 0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SIX SPLINE |
| AHYM | NOMINAL THREAD DIAMETER | 0.086 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 56 |
| Relevant Components for NSN - 5305-01-018-5590, 5305010185590 | ||||
| 5330-00-037-6893 (5330000376893) | 5307-00-803-5029 (5307008035029) | 5306-00-638-8373 (5306006388373) | 5330-01-185-7225 (5330011857225) | |
| 5365-00-089-1699 (5365000891699) | 5331-01-025-7783 (5331010257783) | 5330-01-362-7880 (5330013627880) | 5307-01-286-8388 (5307012868388) | |
| 5340-01-407-7865 (5340014077865) | 5340-01-609-2404 (5340016092404) | 5330-01-167-2303 (5330011672303) | 5340-01-145-4055 (5340011454055) | |
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.
Request for Quote
