5310-00-850-7068 WASHER,FLAT Index 6685-00-850-7070 GAGE,PRESSURE,DIAL INDICATING

National Stock Number:
5306-00-850-7069

Federal Supply Class:
5306

National Item Identification Number:
008507069

Description:
BOLT,RIBBED SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.


Manufacturer Information:
X4343633116KELSEY-HAYES CO WHEEL DRUM AND BRAKE DIV


Techincal Specification:
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS0.062 INCHES NOMINAL
FASTENER LENGTH2.440 INCHES NOMINAL
FEATURES PROVIDEDCASEHARDENED
HARDNESS RATING11.0 ROCKWELL C MINIMUM AND 20.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.200 INCHES NOMINAL
HEAD DIAMETER1.000 INCHES NOMINAL
HEAD STYLEFLAT CHAMFER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1026 OVERALL
MINIMUM TENSILE STRENGTH110000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.437 INCHES
RIB LENGTH0.328 INCHES NOMINAL
RIB MAJOR DIAMETER0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM
SHOULDER DIAMETER0.520 INCHES MINIMUM AND 0.525 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH0.834 INCHES NOMINAL FIRST SHOULDER
SHOULDER SHAPERIBBED FIRST SHOULDER
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.380 INCHES MINIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNF


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