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National Stock Number:
5306-00-031-6360
Federal Supply Class:
5306
National Item Identification Number:
000316360
Description:
BOLT,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 undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.
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Manufacturer Information:
| 212784 | 77445 | RTX CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.380 INCHES MINIMUM AND | | 0.460 INCHES MAXIMUM | | FASTENER LENGTH | 2.840 INCHES MINIMUM AND | | 2.860 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 | | 36.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | SQUARE | | HEAD HEIGHT | 0.150 INCHES MINIMUM AND | | 0.170 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.740 INCHES MINIMUM AND | | 2.750 INCHES MAXIMUM FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.065 INCHES MINIMUM AND | | 0.075 INCHES MAXIMUM FIRST HOLE | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 77445 | | DESIGN CONTROL REFERENCE | 212784 |
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