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National Stock Number:
5306-01-280-5131
Federal Supply Class:
5306
National Item Identification Number:
012805131
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:
| 4072547 | 0UCY9 | M.S. AEROSPACE INC. | | 4072547 | 4GP55 | ACUFAST AIRCRAFT PRODUCTS | | 4072547 | 52661 | RTX CORPORATION | | 4072547 | 77445 | RTX CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.530 INCHES NOMINAL | | FASTENER LENGTH | 2.030 INCHES MINIMUM AND | | 2.050 INCHES MAXIMUM | | MATERIAL | TITANIUM ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 7461 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | TEE NO. 6 | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | HEAD LENGTH | 0.860 INCHES MINIMUM AND | | 0.866 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.640 INCHES MINIMUM AND | | 0.650 INCHES MAXIMUM | | CHAMFER ANGLE | 58.0 DEGREES MINIMUM AND | | 62.0 DEGREES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.426 INCHES MINIMUM AND | | 0.430 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.458 INCHES NOMINAL | | THIRD DIAMETER FROM HEAD | 0.356 INCHES MINIMUM AND | | 0.360 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.080 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.205 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.525 INCHES NOMINAL | | SPECIAL FEATURES | THIRD DIAMETER FROM HEAD TAPERED FROM SECOND DIAMETER AT 25 DEG 30' |
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