Part Details | HEXAGON HEAD CAP SCREW
5305-01-056-1501 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: 274825, 882026032, 88-20260-32, 274825, C81.121274825, C-81.121-274825, 274825, 274825, 5305-01-056-1501, 01-056-1501, 5305010561501, 010561501
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | FEB 17, 1978 | 01-056-1501 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON EXTENDED WASHER
Cross Reference | NSN 5305-01-056-1501
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 274825 | 16004 | DAVEY COMPRESSOR CODIV OF KECO INDUSTRIES INC |
| 88-20260-32 | 30554 | DEPARTMENT OF DEFENSE PROJECTMANAGER-MOBILE ELECTRIC POWER |
| 274825 | 24617 | GENERAL MOTORS CORP |
| C-81.121-274825 | 24617 | GENERAL MOTORS CORP |
| 274825 | 7X677 | GENERAL MOTORS LLCDBA GENERAL MOTORS |
| 274825 | 29215 | JENNY PRODUCTS, INC. |
Technical Data | NSN 5305-01-056-1501
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| THREAD LENGTH | 0.670 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| FASTENER LENGTH | 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| MINIMUM TENSILE STRENGTH | 115000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.204 INCHES MINIMUM AND 0.222 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.513 INCHES MINIMUM AND 0.531 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.019 INCHES MINIMUM AND 0.028 INCHES MAXIMUM |
| SPECIAL FEATURES | WASHER BEARIN SURFACE SERRATED |