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National Stock Number:
5305-00-064-0107
Federal Supply Class:
5305
National Item Identification Number:
000640107
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:
| 0N089069-1 | 98230 | NATIONAL SECURITY AGENCY | | 2093948-1 | 56232 | LOCKHEED MARTIN CORPORATION | | 58-23-309-24 | 94222 | SOUTHCO INC |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.131 INCHES MINIMUM AND 0.141 INCHES MAXIMUM | | HEAD DIAMETER | 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM | | HEAD HEIGHT | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SPECIAL FEATURES | CONE POINT 90 DEG OF ANGLE BY 0.095 IN. LG | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.280 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNC |
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