5306-01-191-3110 BOLT,U Index 5305-01-191-3112 SCREW,TAPPING

National Stock Number:
5305-01-191-3111

Federal Supply Class:
5305

National Item Identification Number:
011913111

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
905320-0490536LOCKHEED MARTIN CORP
NKS35216-2726233NYLOK LLC


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.138 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.407 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
FASTENER LENGTH0.469 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
MATERIALSTEEL COMP 302 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
HEAD STYLEPAN
HEAD DIAMETER0.256 INCHES MINIMUM AND
0.270 INCHES MAXIMUM
HEAD HEIGHT0.087 INCHES MINIMUM AND
0.097 INCHES MAXIMUM
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
LOCKING FEATUREPELLET THREADS
SHANK UNTHREADED HOLE DIAMETER0.073 INCHES MINIMUM AND
0.083 INCHES MAXIMUM FIRST HOLE


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