5310-00-582-9439 NUT,SHEET SPRING Index 5305-00-582-9441 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-582-9440

Federal Supply Class:
5305

National Item Identification Number:
005829440

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:
38-657-956232LOCKHEED MARTIN CORPORATION


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.461 INCHES MINIMUM
FASTENER LENGTH0.562 INCHES NOMINAL
MATERIALSTEEL COMP 416 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
40.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.306 INCHES MINIMUM AND
0.312 INCHES MAXIMUM
HEAD HEIGHT0.185 INCHES MINIMUM AND
0.190 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.156 INCHES MINIMUM AND
0.158 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE56232
DESIGN CONTROL REFERENCE38-657-9


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