2840-01-491-3186 BLANKET,IMPINGEMENT Index 2840-01-491-3188 LPT SHROUD,ASSEMBLY

National Stock Number:
5306-01-491-3187

Federal Supply Class:
5306

National Item Identification Number:
014913187

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:
J643P23D07482GENERAL ELECTRIC COMPANY
J643P23D99207GENERAL ELECTRIC COMPANY


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONAGAV
EXTENDED WASHER DIAMETER0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
FASTENER LENGTH1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM
GRIP LENGTH0.940 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
HEAD HEIGHT0.248 INCHES MINIMUM AND 0.268 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH BETWEEN FLATS0.250 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNJF


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