4810-00-851-7883 STUD,VALVE Index 4820-00-851-7888 SEAT,VALVE

National Stock Number:
5305-00-851-7885

Federal Supply Class:
5305

National Item Identification Number:
008517885

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:
A302-7C4-434228L3 TECHNOLOGIES, INC.
H76316-04040D0D0BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.
M32CR440-4E26233NYLOK LLC
MR32CR440-4E26233NYLOK LLC
H76316-040488818KEARFOTT CORPORATION


Techincal Specification:
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
FASTENER LENGTH0.250 INCHES NOMINAL
HEAD DIAMETER0.207 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESLOT
LOCKING FEATUREPELLET THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 302 OVERALL
NOMINAL THREAD DIAMETER0.112 INCHES
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD LENGTH0.250 INCHES MINIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNC


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