5330-00-814-0787 SLEEVE,SEAL,COUPLER Index 5305-00-814-0789 SCREW,SPECIAL

National Stock Number:
5310-00-814-0788

Federal Supply Class:
5310

National Item Identification Number:
008140788

Description:
WASHER,DIRECT TENSION INDICATING

Detail:
AN ITEM ROUND IN SHAPE HAVING A CENTALLY LOCATED HOLE. IT CONSIST OF A STEEL RING WITH PROTRUSIONS ON ONE FACE. WHEN THE ITEM IS PLACED UNDER THE BOLT HEAD OR NUT END, THE PROTRUSIONS CREATE A GAP. AS THE BOLT IS TENSIONED, THE CLAMPING FORCE FLATTENS THE PROTRUSIONS REDUCING THE GAP. CORRECT BOLT TENSION IS EVALUATED BY OBSERVING THE REMAINING GAP.


Manufacturer Information:
677028-122907HELIGEAR ACQUISITION CO.


Techincal Specification:
COLORBLACK OVERALL
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.778 INCHES MINIMUM AND 0.782 INCHES MAXIMUM
MATERIAL THICKNESS0.006 INCHES NOMINAL
III MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7947 MIL STD SINGLE MATERIAL RESPONSE OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, DIMPLED
PROPRIETARY CHARACTERISTICSPACS
OVERALL HEIGHT0.010 INCHES MINIMUM AND 0.012 INCHES MAXIMUM
SPECIAL FEATURES8-0.060DIA DIMPLES EQUALLY SPACED AT 45 DEGREES, ALTERNATING SIDES 0.450IN FROM CENTER
STYLE DESIGNATORCORONET LOAD INDICATING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE OVERALL


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