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National Stock Number:
5305-01-391-9689
Federal Supply Class:
5305
National Item Identification Number:
013919689
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:
| DAA7278D209-001 | 1W025 | NORTHROP GRUMMAN SYSTEMS CORP | | MS51110-66 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.344 INCHES NOMINAL FIRST HOLE | | FASTENER LENGTH | 2.500 INCHES NOMINAL | | HARDNESS RATING | 235.0 BRINELL STANDARD MAXIMUM OVERALL | | HEAD HEIGHT | 0.233 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 410 OR STEEL COMP 416 OR STEEL COMP 430 OVERALL | | MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.121 INCHES MINIMUM AND 0.125 INCHES MAXIMUM FIRST HOLE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.500 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNF | | WIDTH BETWEEN FLATS | 0.640 INCHES NOMINAL |
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