5340-01-422-8256 RETAINER,HELICAL COMPRESSION SPR Index 5305-01-422-8258 SETSCREW

National Stock Number:
5307-01-422-8257

Federal Supply Class:
5307

National Item Identification Number:
014228257

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:
M63540/3-16-981349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-S-63540/381349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
DISTANCE ACROSS FLATS0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM
HEAD DIAMETER0.199 INCHES NOMINAL
HEAD LENGTH0.082 INCHES MINIMUM AND 0.083 INCHES MAXIMUM
LOCKING FEATUREHEAD DISTORTIONS
OVERALL LENGTH0.563 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD ALL MATERIAL RESPONSES
MATERIALSTEEL COMP 303 AND STEEL COMP 303SE
NOMINAL THREAD SIZE0.138 INCHES LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATORSELF-LOCKING
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A LOCATION NOT OTHERWISE SPECIFIED
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD LENGTH0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
THREAD QUANTITY PER INCH32 LOCATION NOT OTHERWISE SPECIFIED


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