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National Stock Number:
5305-01-512-8123
Federal Supply Class:
5305
National Item Identification Number:
015128123
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.
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Manufacturer Information:
| 375-SS-20 | 55566 | MATTHEW WARREN, INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.112 INCHES | | THREAD QUANTITY PER INCH | 40 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.110 INCHES MINIMUM AND | | 0.125 INCHES MAXIMUM | | FASTENER LENGTH | 0.860 INCHES MINIMUM AND | | 0.890 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.250 INCHES MINIMUM AND | | 0.265 INCHES MAXIMUM | | HEAD HEIGHT | 0.240 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.073 INCHES MINIMUM AND | | 0.083 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.068 INCHES MINIMUM AND | | 0.078 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.662 INCHES MINIMUM AND | | 0.682 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.860 INCHES MINIMUM AND | | 0.890 INCHES MAXIMUM | | SPECIAL FEATURES | ALL CHAMFERED ARE AT 45 DEGREE, EXCEPT TIP END AT 90 DEGREE + - 5 DEGREE | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, EXTRENALLY RELIEVED BODY |
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