Part Details | HEXAGON HEAD CAP SCREW
5305-00-921-0890 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: B1821BH025F063D, ASME B18.2.1, AES01F250625AW9A97, MS181535, MS18153-5, 5305-00-921-0890, 00-921-0890, 5305009210890, 009210890
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 11, 1965 | 00-921-0890 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
HEXAGON FLATS
Cross Reference | NSN 5305-00-921-0890
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| B1821BH025F063D | 80204 | AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED |
| ASME B18.2.1 | 05047 | AMERICAN SOCIETY OF MECHANICALENGINEERS, THE |
| AES01F250625AW9A97 | 05047 | AMERICAN SOCIETY OF MECHANICALENGINEERS, THE |
| MS18153-5 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
Technical Data | NSN 5305-00-921-0890
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| THREAD LENGTH | 0.500 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| FASTENER LENGTH | 0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 2A |
| MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 120000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 1 |
| HOLE DIAMETER | 0.062 INCHES NOMINAL |