5310-01-217-1838 WASHER,RECESSED Index 5310-01-217-1840 WASHER,SPECIAL

National Stock Number:
5310-01-217-1839

Federal Supply Class:
5310

National Item Identification Number:
012171839

Description:
NUT,SELF-LOCKING,PLATE

Detail:
A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.


Manufacturer Information:
10110170A486GNIMIKKEISTOKESKUS NCB FINLAND
3M1049-4-676301THE BOEING COMPANY
F52108-4-615653HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
THREAD DIRECTIONRIGHT-HAND
NUT STYLEPLATE
MATERIALSTEEL OVERALL
THREAD SERIESUNJF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3B
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
NUT LENGTH1.038 INCHES MAXIMUM
NUT HEIGHT0.589 INCHES MAXIMUM
PLATE THICKNESS0.098 INCHES MINIMUM AND
0.108 INCHES MAXIMUM
NUT COUNTERBORE DEPTH0.375 INCHES MINIMUM SECOND END
NUT MOUNTING PROVISIONSTRAIGHT HOLES
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND
0.103 INCHES MAXIMUM
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER0.495 INCHES MINIMUM AND
0.505 INCHES MAXIMUM
FEATURES PROVIDEDFLOATING NUT


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