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National Stock Number:
5305-00-736-3825
Federal Supply Class:
5305
National Item Identification Number:
007363825
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:
| 9141948 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.086 INCHES | | THREAD QUANTITY PER INCH | 56 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.085 INCHES MINIMUM | | FASTENER LENGTH | 0.180 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | PAN NO. 2 | | HEAD DIAMETER | 0.155 INCHES MINIMUM AND | | 0.167 INCHES MAXIMUM | | HEAD HEIGHT | 0.045 INCHES MINIMUM AND | | 0.053 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.082 INCHES MINIMUM AND | | 0.086 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.062 INCHES MINIMUM AND | | 0.064 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.065 INCHES MINIMUM AND | | 0.085 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.085 INCHES MINIMUM AND | | 0.105 INCHES MAXIMUM |
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