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National Stock Number:
5305-00-842-6509
Federal Supply Class:
5305
National Item Identification Number:
008426509
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:
| 8827647-1 | 79087 | VICTOR-BALATA BELTING CO | | 8827647-1 | 87679 | VICTOR-BALATA BELTING COMPANY |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.218 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.304 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FASTENER LENGTH | 0.709 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.086 INCHES NOMINAL | | HEAD DIAMETER | 0.172 INCHES NOMINAL | | HEAD HEIGHT | 0.069 INCHES NOMINAL | | HEAD STYLE | ROUND | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626,COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 360 OVERALL | | NOMINAL THREAD DIAMETER | 0.086 INCHES | | SECOND DIAMETER FROM HEAD | 0.062 INCHES NOMINAL | | SURFACE TREATMENT | NICKEL OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.187 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 56 | | THREAD SERIES DESIGNATOR | UNC |
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