3020-00-590-9139 GEAR Index 4820-00-590-9144 DISK,VALVE

National Stock Number:
5306-00-590-9140

Federal Supply Class:
5306

National Item Identification Number:
005909140

Description:
BOLT,INTERNAL WRENCHING

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 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.


Manufacturer Information:
768692-198897LOCKHEED MARTIN CORP


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.662 INCHES NOMINAL
FASTENER LENGTH3.000 INCHES NOMINAL
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND
40.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEBEVEL-CONICAL
HEAD DIAMETER0.521 INCHES MINIMUM AND
0.531 INCHES MAXIMUM
HEAD HEIGHT0.312 INCHES NOMINAL
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.2190 INCHES MINIMUM AND
0.2210 INCHES MAXIMUM
SPECIAL FEATURES2 HOLES PERPENDICULAR TO AXIS,0.125 IN. DIA,1.040 IN. TOP OF HEAD TO FIRST HOLE CENTER,0.860 IN. C TO C OF HOLES; BOTTOM OF HEAD CHAMFERED 0.090 IN. LG BY 45.0 DEG
THE MANUFACTURERS DATA
MANUFACTURERS CODE98897
DESIGN CONTROL REFERENCE768692-1


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