5305-01-144-6258 SCREW,EXTERNALLY RELIEVED BODY Index 5305-01-144-6260 SCREW,MACHINE

National Stock Number:
5306-01-144-6259

Federal Supply Class:
5306

National Item Identification Number:
011446259

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:
72688-6-1256878SPS TECHNOLOGIES, LLC
72688-6-1280539SPS TECHNOLOGIES, LLC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.180 INCHES MINIMUM AND 1.212 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH1.289 INCHES MINIMUM AND 1.309 INCHES MAXIMUM
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.204 INCHES MAXIMUM
HEAD STYLECROWNED HEXAGON
LOCKING FEATUREDETENT RING GRIP
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP E4340 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
SHANK UNTHREADED HOLE DIAMETER0.081 INCHES NOMINAL FIRST HOLE
SHOULDER DIAMETER0.3733 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH0.750 INCHES MINIMUM AND 0.756 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPEROUND FIRST SHOULDER
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.368 INCHES MINIMUM AND 0.398 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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