1660-00-988-1772 TURBINE WHEEL ASSEMBLY,AIRCRAFT Index 5305-00-988-1774 SETSCREW

National Stock Number:
5305-00-988-1773

Federal Supply Class:
5305

National Item Identification Number:
009881773

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:
69581-4-3A73030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
FASTENER LENGTH0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM
HEAD HEIGHT0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
HOLE CONFIGURATION STYLEROUND INTERNAL HEXAGON
HOLE DIAMETER0.028 INCHES NOMINAL
HOLE QUANTITY6
HOLE TYPEDRILLED
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 410 OVERALL
NOMINAL THREAD DIAMETER0.112 INCHES
SURFACE FINISH32.0 MICROINCHES THREADS
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH40
WIDTH ACROSS FLATS0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM


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