5999-00-890-9799 HEAT SINK,ELECTRICAL-ELECTRONIC Index 5305-00-890-9802 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-890-9801

Federal Supply Class:
5305

National Item Identification Number:
008909801

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:
0N10183798230NATIONAL SECURITY AGENCY


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.610 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.880 INCHES MINIMUM AND 0.920 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
HEAD DIAMETER0.270 INCHES NOMINAL
HEAD HEIGHT0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
SPECIAL FEATURESHEAD PAINTED RED COLOR NO. 11136 FED-STD-595
THREAD LENGTH0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH32


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