5306-00-206-4789 BOLT,MACHINE Index 5306-00-206-4800 BOLT,MACHINE

National Stock Number:
5306-00-206-4793

Federal Supply Class:
5306

National Item Identification Number:
002064793

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
5W1267FA2211530LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN INFORMATION SYSTEMS & GLOBAL SOLUTIONS
FFB575TYPE3GRADE181348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH1.000 INCHES NOMINAL
MATERIALSTEEL OVERALL
THREAD LENGTH0.750 INCHES MINIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS2A
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
HARDNESS RATING95.0 ROCKWELL B NOMINAL OVERALL
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.156 INCHES NOMINAL
WIDTH BETWEEN FLATS0.425 INCHES MINIMUM AND
0.438 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
DEPARTURE FROM CITED DESIGNATORAS MOD BY FURNISHED NUT
NONDEFINITIVE SPEC/STD DATA3 TYPE AND
1 GRADE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFFB575TYPE3GRADE1


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