5305-00-206-6224 THUMBSCREW Index 5305-00-206-6228 CIRCUIT BREAKER

National Stock Number:
5305-00-206-6226

Federal Supply Class:
5305

National Item Identification Number:
002066226

Description:
THUMBSCREW

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).


Manufacturer Information:
A24550406845RAYTHEON COMPANY


Techincal Specification:
FASTENER LENGTH1.180 INCHES NOMINAL
HEAD DIAMETER0.760 INCHES NOMINAL
HEAD HEIGHT0.180 INCHES NOMINAL
HEAD STYLEKNURLED NO. 1
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CL 8,TY A FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 321 OR STEEL COMP 347 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
POINT STYLEFLAT
SHOULDER DIAMETER0.183 INCHES MINIMUM AND 0.190 INCHES MAXIMUM FIRST SHOULDER
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.097 INCHES MINIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNC


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