Part Details | HEXAGON HEAD CAP SCREW
5305-01-277-0441 An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY; BOLT,INTERNAL WRENCHING; and SCREW,CAP,SOCKET HEAD.
Alternate Parts: B1821BH056C056N, FFS85, MS90728130, MS90728-130, MS90725130, MS90725-130, MS90725130, MS90725-130, 5305-01-277-0441, 01-277-0441, 5305012770441, 012770441
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | APR 16, 1988 | 01-277-0441 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5305-01-277-0441
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| B1821BH056C056N | 80204 | AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED |
| FFS85 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| MS90728-130 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
| MS90725-130 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
| MS90725-130 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
Technical Data | NSN 5305-01-277-0441
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| THREAD LENGTH | 0.323 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| FASTENER LENGTH | 0.531 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.562 INCHES |
| THREAD QUANTITY PER INCH | 12 |
| THREAD CLASS | 2A |
| MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.798 INCHES MINIMUM AND 0.812 INCHES MAXIMUM |