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National Stock Number:
5305-00-514-8140
Federal Supply Class:
5305
National Item Identification Number:
005148140
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:
| 306016 | 00198 | PRATT & WHITNEY CANADA CORP | | 306016 | 77445 | RTX CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNS | | NOMINAL THREAD DIAMETER | 0.578 INCHES | | THREAD QUANTITY PER INCH | 12 | | NONSTANDARD THREAD PITCH DIAMETER | 0.5210 TO 0.5240 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.510 INCHES MINIMUM | | FASTENER LENGTH | 2.020 INCHES MINIMUM AND | | 2.040 INCHES MAXIMUM | | MATERIAL | STEEL COMP 8740 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.865 INCHES MINIMUM AND | | 0.875 INCHES MAXIMUM | | COUNTERSINK ANGLE | 79.0 DEGREES MINIMUM AND | | 81.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.461 INCHES MINIMUM AND | | 0.471 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.510 INCHES MINIMUM AND | | 1.530 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 00198 | | DESIGN CONTROL REFERENCE | 306016 |
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