| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-390-0650 (003900650) |
| NCB Code | USA (00) |
| Manufacturer | Roller Bearing Company Of America |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.438 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.813 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.500 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.218 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.374 INCHES MINIMUM FIRST SHOULDER AND 0.375 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.375 INCHES MINIMUM FIRST SHOULDER AND 0.377 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP 303 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-00-390-0650, 5305003900650 | ||||
| 5305-01-586-4216 (5305015864216) | 5315-01-329-3032 (5315013293032) | 5340-01-508-5897 (5340015085897) | 5306-01-476-8561 (5306014768561) | |
| 5330-00-171-7965 (5330001717965) | 5305-01-182-2172 (5305011822172) | 5330-00-395-1573 (5330003951573) | 5330-00-872-6408 (5330008726408) | |
| 5342-01-663-1331 (5342016631331) | 5310-00-631-6060 (5310006316060) | 5305-01-369-8238 (5305013698238) | 5306-01-664-2091 (5306016642091) | |
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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