5305-00-726-5873 SCREW,MACHINE Index 5998-00-726-5875 ELECTRONIC COMPONENTS ASSEMBLY

National Stock Number:
5306-00-726-5874

Federal Supply Class:
5306

National Item Identification Number:
007265874

Description:
BOLT,SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.


Manufacturer Information:
NAS1297-5-980205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.498 INCHES MINIMUM
FASTENER LENGTH1.070 INCHES NOMINAL
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLEHEXAGON
HEAD HEIGHT0.203 INCHES MINIMUM AND
0.235 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND
0.569 INCHES MAXIMUM
SHOULDER SHAPEROUND FIRST SHOULDER
SHOULDER DIAMETER0.374 INCHES NOMINAL FIRST SHOULDER
SHOULDER LENGTH0.572 INCHES NOMINAL FIRST SHOULDER


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