Part Number: MS20006H39

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CONDITION:
NS
NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE80205
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M96906
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.662 INCHES MINIMUM AND 0.712 INCHES MAXIMUM
FASTENER LENGTH3.110 INCHES MINIMUM AND 3.140 INCHES MAXIMUM
HEAD STYLEBEVEL-CONICAL
HEAD DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM
HEAD HEIGHT0.375 INCHES NOMINAL
HOLE DIAMETER0.055 INCHES NOMINAL
INTERNAL DRIVE STYLEHEXAGON
NOMINAL THREAD DIAMETER0.375 INCHES
WIDTH ACROSS FLATS0.313 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
HOLE QUANTITY4
HOLE TYPEDRILLED
THREAD QUANTITY PER INCH24
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HARDNESS RATING34.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL
HOLE CONFIGURATION STYLEROUND LONGITUDINAL HOLE
MATERIALSTEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES DESIGNATORUNF
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 1 ( .19 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.