5310-00-639-0779 WASHER,FLAT Index 5305-00-639-0793 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5310-00-639-0787

Federal Supply Class:
5310

National Item Identification Number:
006390787

Description:
WASHER,LOCK

Detail:
A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces


Manufacturer Information:
59647300000ORDNANCE CORPS
MS35335-7496906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
HARDNESS RATING89.0 ROCKWELL B MINIMUM AND 94.0 ROCKWELL B MAXIMUM
HOLE DIAMETER0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM
OUTSIDE DIAMETER0.395 INCHES MINIMUM AND 0.410 INCHES MAXIMUM
MATERIAL THICKNESS0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM
MATERIALCOPPER ALLOY AND COPPER ALLOY 425 OVERALL
NONDEFINITIVE SPEC/STD DATAB TYPE
STYLE DESIGNATORFLAT EXTERNAL TEETH


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