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National Stock Number:
5305-01-210-7668
Federal Supply Class:
5305
National Item Identification Number:
012107668
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:
| 11507381 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 11507381 | 64609 | BANNER MACHINE COMPANY, INC. |
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Techincal Specification:
| THREAD LENGTH | 0.420 INCHES NOMINAL | | FASTENER LENGTH | 0.970 INCHES NOMINAL | | MATERIAL | STEEL COMP 630 OVERALL | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.134 INCHES MINIMUM AND | | 0.138 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.218 INCHES MINIMUM AND | | 0.226 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.109 INCHES MINIMUM AND | | 0.111 INCHES MAXIMUM | | LOCKING FEATURE | UNDERCUT OVERALL | | POINT LENGTH | 0.170 INCHES NOMINAL | | POINT DIAMETER | 0.920 INCHES MINIMUM AND | | 0.925 INCHES MAXIMUM | | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 | | FIRST DIAMETER FROM HEAD | 0.905 INCHES MINIMUM AND | | 0.915 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.136 INCHES MINIMUM AND | | 0.137 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.160 INCHES MINIMUM AND | | 0.170 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.220 INCHES MINIMUM AND | | 0.230 INCHES MAXIMUM | | ASKEWED HEAD ANGLE | 120.0 DEGREES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 18876 | | DESIGN CONTROL REFERENCE | 11507381 |
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