4730-00-143-1614 RING Index 5306-00-143-1621 BOLT,MACHINE

National Stock Number:
5305-00-143-1619

Federal Supply Class:
5305

National Item Identification Number:
001431619

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:
9998996-418876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.884 INCHES MINIMUM AND
0.919 INCHES MAXIMUM
FASTENER LENGTH0.994 INCHES MINIMUM AND
1.016 INCHES MAXIMUM
MATERIALSTEEL COMP 302 OR
STEEL COMP 303SE OR
STEEL COMP 304 OR
STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.477 INCHES MINIMUM AND
0.507 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND
101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLESLOT
LOCKING FEATUREPELLET THREADS


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