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National Stock Number:
5306-01-214-2759
Federal Supply Class:
5306
National Item Identification Number:
012142759
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:
| 1285M91G01 | 07482 | GENERAL ELECTRIC COMPANY | | 1285M91G02 | 03350 | GENERAL ELECTRIC COMPANY DBA GE STRUCTURED SERVICES DIV GENERAL ELECTRIC STRUCTURED SERVICES LP | | 1285M91G02 | 06710 | VALLEY-TODECO, INC. | | 1285M91G02 | 07482 | GENERAL ELECTRIC COMPANY | | 1285M91G02 | 56878 | SPS TECHNOLOGIES, LLC | | 1285M91G02 | 80539 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.738 INCHES NOMINAL | | FASTENER LENGTH | 1.648 INCHES MINIMUM AND | | 1.668 INCHES MAXIMUM | | MATERIAL | NICKEL ALLOY OVERALL | | HEAD STYLE | ROUND W/WRENCH FLATS CHAMFERED | | HEAD DIAMETER | 0.450 INCHES MINIMUM AND | | 0.470 INCHES MAXIMUM | | HEAD HEIGHT | 0.075 INCHES MINIMUM AND | | 0.085 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.320 INCHES MINIMUM AND | | 0.340 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 | | FIRST DIAMETER FROM HEAD | 0.258 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.215 INCHES MINIMUM AND | | 0.225 INCHES MAXIMUM | | THIRD DIAMETER FROM HEAD | 0.258 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.290 INCHES MINIMUM AND | | 0.310 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.560 INCHES MINIMUM AND | | 0.580 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.910 INCHES MINIMUM AND | | 0.930 INCHES MAXIMUM | | SPECIAL FEATURES | 3 PINS EQUALLY SPACED AND KEY ON TOP OF HEAD |
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