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National Stock Number:
5305-00-486-3568
Federal Supply Class:
5305
National Item Identification Number:
004863568
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:
| 549-0944-004 | 13499 | ROCKWELL COLLINS, INC. | | 549-0944-004 | 95105 | ROCKWELL COLLINS, INC. |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 5.024 INCHES MINIMUM AND 5.054 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 5.118 INCHES MINIMUM AND 5.148 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM | | HEAD DIAMETER | 0.235 INCHES MINIMUM AND 0.255 INCHES MAXIMUM | | HEAD HEIGHT | 0.132 INCHES MINIMUM AND 0.156 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | SECOND DIAMETER FROM HEAD | 0.159 INCHES MINIMUM AND 0.165 INCHES MAXIMUM | | THREAD CLASS | 2A | | THIRD DIAMETER FROM HEAD | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC |
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