5307-01-204-2218 STUD,LOCKED IN Index 5307-01-204-2220 STUD,SELF-LOCKING

National Stock Number:
5307-01-204-2219

Federal Supply Class:
5307

National Item Identification Number:
012042219

Description:
STUD,SELF-LOCKING

Detail:
A headed fastener threaded externally on a portion or on the full length of the shank. The head has projections on the underside or periphery, or is otherwise designed to be mechanically pressed and embedded in a metallic panel, or the like. It is securely locked in position by the displaced metal. For items that require locking rings, see BOLT, SELF-LOCKING and STUD, LOCKED IN. Excludes INSERT, SCREW THREAD.


Manufacturer Information:
70219-02556-10165780TEK PRECISION CO LIMITED
70219-02556-10178286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
DISTANCE ACROSS FLATS0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END0.187 INCHES NOMINAL FIRST HOLE
COTTER PIN HOLE DIAMETER0.109 INCHES NOMINAL FIRST HOLE
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
HEAD DIAMETER0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM
HEAD LENGTH0.337 INCHES NOMINAL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD SIZE0.375 INCHES NUT THREAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL
THREAD CLASS3A NUT THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD LENGTH0.470 INCHES MINIMUM NUT THREAD AND 0.530 INCHES MAXIMUM NUT THREAD
THREAD QUANTITY PER INCH24 NUT THREAD
THREAD SERIES DESIGNATORUNJF NUT THREAD


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