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National Stock Number:
5306-00-514-9108
Federal Supply Class:
5306
National Item Identification Number:
005149108
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:
| 200439 | 02978 | RENK AMERICA LLC | | 28014 | 0AHP5 | CURTISS-WRIGHT CONTROLS, INC. | | 28014 | 15555 | CURTISS-WRIGHT CORP |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.594 INCHES MAXIMUM | | FASTENER LENGTH | 0.984 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6317 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM OVERALL | | BOTTOM COUNTERSINK DIAMETER | 0.245 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM | | HEAD HEIGHT | 0.188 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL | | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.245 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.390 INCHES NOMINAL | | SPECIAL FEATURES | THD PITCH DIA MUST BE CONCENTRIC,SQUARE AND TRUE TO BODY WITHIN 0.006 AND TO TAPER WITHIN 0.004 FULL INDICATOR READINGS WHEN MTD ON CENTERS OR EQUIVALENT |
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