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National Stock Number:
5305-01-523-0311
Federal Supply Class:
5305
National Item Identification Number:
015230311
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
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. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| MS51095-489 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FASTENER LENGTH | 2.812 INCHES MINIMUM AND 3.000 INCHES MAXIMUM | | HEAD HEIGHT | 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | HOLE DIAMETER | 0.125 INCHES NOMINAL | | HOLE CONFIGURATION STYLE | HEXAGON FLATS | | HOLE QUANTITY | 1 | | HOLE TYPE | DRILLED | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GRADE 5 ASSN STD SINGLE MATERIAL RESPONSE AND FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 55400 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.875 INCHES | | WIDTH BETWEEN FLATS | 1.285 INCHES MINIMUM AND 1.312 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2. CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.000 INCHES MINIMUM AND 2.188 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 9 | | THREAD SERIES DESIGNATOR | UNC |
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