4820-01-286-9778 DISK,VALVE Index 5305-01-286-9780 SCREW,MACHINE

National Stock Number:
5306-01-286-9779

Federal Supply Class:
5306

National Item Identification Number:
012869779

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:
5306PL14988709009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
MS9895-0896906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.615 INCHES MINIMUM AND
0.635 INCHES MAXIMUM
MATERIALSTEEL COMP 615 OVERALL
THREAD LENGTH0.516 INCHES MINIMUM AND
0.556 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.293 INCHES MINIMUM AND
0.313 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND
0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
HOLE TYPEDRILLED
HOLE QUANTITY4
HOLE DIAMETER0.060 INCHES MINIMUM AND
0.070 INCHES MAXIMUM
GRIP LENGTH0.079 INCHES MINIMUM AND
0.099 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
32.0 MICROINCHES GRIP
32.0 MICROINCHES THREADS
FEATURES PROVIDEDFINISHED HEAD
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS9895-08


Click here to Register for Free 30-day Trial