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National Stock Number:
5305-01-245-4061
Federal Supply Class:
5305
National Item Identification Number:
012454061
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:
| 5152410 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE |
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Techincal Specification:
| NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.344 INCHES NOMINAL | | FASTENER LENGTH | 0.062 INCHES NOMINAL | | MATERIAL | STEEL COMP 1060 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | HEAD DIAMETER | 0.531 INCHES NOMINAL | | HEAD HEIGHT | 0.071 INCHES MINIMUM AND | | 0.081 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 | | FIRST DIAMETER FROM HEAD | 0.371 INCHES MINIMUM AND | | 0.373 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.371 INCHES MINIMUM AND | | 0.373 INCHES MAXIMUM | | THIRD DIAMETER FROM HEAD | 0.235 INCHES MINIMUM AND | | 0.240 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.071 INCHES MINIMUM AND | | 0.081 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.936 INCHES MINIMUM AND | | 0.976 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.775 INCHES MINIMUM AND | | 1.785 INCHES MAXIMUM |
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