5305-01-106-0253 SCREW,CAP,SOCKET HEAD Index 5305-01-106-0255 THUMBSCREW

National Stock Number:
5305-01-106-0254

Federal Supply Class:
5305

National Item Identification Number:
011060254

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:
107256-115937695RAYTHEON COMPANY
LL57G26P1003038LONG-LOK, LLC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.625 INCHES NOMINAL
HEAD DIAMETER0.156 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
LOCKING FEATURESTRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER0.086 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.553 INCHES MINIMUM AND 0.596 INCHES MAXIMUM
THREAD QUANTITY PER INCH56
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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