1440-01-490-4062 BELLOWS Index 4940-01-490-4064 MAINTENANCE FACILITY,TRANSPORTAB

National Stock Number:
5306-01-490-4063

Federal Supply Class:
5306

National Item Identification Number:
014904063

Description:
BOLT,INTERNAL WRENCHING

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.


Manufacturer Information:
MS20007-896906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH2.099 INCHES NOMINAL
HEAD HEIGHT0.438 INCHES NOMINAL
HEAD DIAMETER0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
HEAD STYLEBEVEL-CONICAL
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL COMP 4140 OVERALL
NOMINAL THREAD DIAMETER0.438 INCHES
WIDTH ACROSS FLATS0.313 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.787 INCHES NOMINAL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNJF


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