2910-01-053-4552 RETAINER Index 5305-01-053-4554 SCREW

National Stock Number:
5305-01-053-4553

Federal Supply Class:
5305

National Item Identification Number:
010534553

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
31024311083CATERPILLAR INC


Techincal Specification:
EXTENDED WASHER DIAMETER13.208 MILLIMETERS NOMINAL
EXTENDED WASHER THICKNESS1.270 MILLIMETERS NOMINAL
HEAD HEIGHT6.096 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON EXTENDED WASHER
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS9.525 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION1E397,CAGEC 11083 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH15.875 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH20


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