5305-00-208-1589 SCREW,EXTERNALLY RELIEVED BODY Index 5305-00-208-1598 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-208-1596

Federal Supply Class:
5305

National Item Identification Number:
002081596

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.


Manufacturer Information:
34104-11DC28HELICOPTER PARTS SERVICE INC
34104-189446HILLER AIRCRAFT CORPORATION
5305H23-00081996U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.027 INCHES NOMINAL FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.840 INCHES MINIMUM AND 0.860 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER0.910 INCHES MINIMUM AND 0.950 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY3
FASTENER LENGTH1.150 INCHES MINIMUM AND 1.160 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.4785 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM
HEAD DIAMETER0.682 INCHES MINIMUM AND 0.685 INCHES MAXIMUM
HEAD HEIGHT0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
HEAD STYLEDOUBLE CHAMFER
INTERNAL DRIVE STYLESLOT
MATERIALSTEEL COMP 4130 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
SECOND DIAMETER FROM HEAD0.4985 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES NOMINAL FIRST HOLE
SPECIAL FEATURESLETTERED (S) ON HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE HEAD
SURFACE TREATMENTCADMIUM HEAD
TEST DATA DOCUMENT81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THIRD DIAMETER FROM HEAD0.422 INCHES MINIMUM AND 0.432 INCHES MAXIMUM
THREAD LENGTH0.170 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNF


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