5305-01-370-6953 SCREW,CAP,HEXAGON HEAD Index 5305-01-370-6955 SCREW,SHOULDER

National Stock Number:
5305-01-370-6954

Federal Supply Class:
5305

National Item Identification Number:
013706954

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.


Manufacturer Information:
DAA7232D060-0011W025NORTHROP GRUMMAN SYSTEMS CORP
DAA7232D060-00176823NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
FASTENER LENGTH3.250 INCHES NOMINAL
HEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIAL FEATURESUNDERCUT RELIEF LOCATED .075 IN. FROM BEARING SURFACE OF HEAD,.030 IN. LG.,.220 IN. DIA
WIDTH BETWEEN FLATS0.433 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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