Part Details | HEXAGON HEAD CAP SCREW
5305-01-078-1274 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: 12271915, 12272182, 5305-01-078-1274, 01-078-1274, 5305010781274, 010781274
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUN 09, 1979 | 01-078-1274 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5305-01-078-1274
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 12271915 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
| 12272182 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 5305-01-078-1274
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| THREAD LENGTH | 0.350 INCHES NOMINAL |
| FASTENER LENGTH | 1.313 INCHES MINIMUM AND 1.375 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 16 |
| THREAD CLASS | 2A |
| MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.5510 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM |