5305-01-269-8697 SETSCREW Index 5306-01-269-8699 BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5305-01-269-8698

Federal Supply Class:
5305

National Item Identification Number:
012698698

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:
371AS243-130003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
FASTENER LENGTH4.125 INCHES NOMINAL
HEAD DIAMETER0.500 INCHES NOMINAL
HEAD HEIGHT0.375 INCHES NOMINAL
HEAD STYLEKNURLED NO. 1
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 316 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
POINT STYLECONE
SPECIAL FEATURESGROOVE MACHINED TO 0.147 IN. MIN. AND 0.149 IN. MAX.,0.029 IN. MIN. AND 0.032 MAX. LONG,LOCATED 1.437 IN. FROM BEARING SURFACE OF HEAD
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.375 INCHES NOMINAL
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNF


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