5305-01-044-6548 SCREW,MACHINE Index 5305-01-044-6550 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-044-6549

Federal Supply Class:
5305

National Item Identification Number:
010446549

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
229-00496633827BAE SYSTEMS INTEGRATED DEFENSE SOLUTIONS INC.


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.380 INCHES NOMINAL
FASTENER LENGTH1.000 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,400 SERIES FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTOXIDE OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.365 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.187 INCHES MINIMUM AND
0.190 INCHES MAXIMUM
LOCKING FEATURESTRIP THREADS
SPECIAL FEATURESKNURLED HEAD AND COLOR BLACK
THE MANUFACTURERS DATA
MANUFACTURERS CODE33827
DESIGN CONTROL REFERENCE229-004966


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