5306-01-143-4283 BOLT,MACHINE Index 5305-01-143-4285 SCREW,SHOULDER

National Stock Number:
5306-01-143-4284

Federal Supply Class:
5306

National Item Identification Number:
011434284

Description:
BOLT,INTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.


Manufacturer Information:
214-040-082-397499BELL TEXTRON INC


Techincal Specification:
CONCENTRIC HOLE DIAMETER0.311 INCHES MINIMUM AND 0.318 INCHES MAXIMUM
FASTENER LENGTH2.254 INCHES NOMINAL
HARDNESS RATING34.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.190 INCHES NOMINAL
HEAD STYLEHEXAGON
HOLE CONFIGURATION STYLEHEXAGON LONGITUDINAL HOLE
HOLE DIAMETER0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.750 INCHES
SHOULDER DIAMETER0.7486 INCHES MINIMUM AND 0.7491 INCHES MAXIMUM
SHOULDER LENGTH1.753 INCHES MINIMUM AND 1.763 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.311 INCHES MINIMUM AND 0.318 INCHES MAXIMUM
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNF


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