5305-01-500-4490 SCREW,CAP,SOCKET HEAD Index 5340-01-500-4492 BRACKET,ANGLE

National Stock Number:
5305-01-500-4491

Federal Supply Class:
5305

National Item Identification Number:
015004491

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:
0.312-18UNRC-3AX1.500LG NICUAL81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
582-7067148-4613483PRECISION ELECTRONICS, INC
582-7067148-4653711NAVAL SEA SYSTEMS COMMAND
92-09-215096169ELECTRIC BOAT CORPORATION
H615-2002-4696169ELECTRIC BOAT CORPORATION


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.874 INCHES NOMINAL
FASTENER LENGTH1.500 INCHES NOMINAL
MATERIALNICKEL ALLOY 502 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING24.0 ROCKWELL C NOMINAL OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.469 INCHES NOMINAL
HEAD HEIGHT0.312 INCHES NOMINAL
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.156 INCHES NOMINAL
LOCKING FEATUREPATCH OR
PELLET HEAD


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