1680-01-456-0219 SEAT,AIRCRAFT Index 5320-01-456-0221 COLLAR,PIN-RIVET

National Stock Number:
5305-01-456-0220

Federal Supply Class:
5305

National Item Identification Number:
014560220

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:
21107581453711NAVAL SEA SYSTEMS COMMAND
243-6758311-MSAS-A2753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH13
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.846 INCHES MINIMUM AND
1.000 INCHES MAXIMUM
FASTENER LENGTH0.970 INCHES MINIMUM AND
1.000 INCHES MAXIMUM
MATERIALALUMINUM ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MINIMUM TENSILE STRENGTH130000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.735 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
HEAD HEIGHT0.492 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.375 INCHES NOMINAL


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