5998-01-470-4852 BACKPLANE ASSEMBLY Index 5340-01-470-4855 STRAPPING

National Stock Number:
5305-01-470-4853

Federal Supply Class:
5305

National Item Identification Number:
014704853

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:
678097853711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.750 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.677 INCHES NOMINAL
FASTENER LENGTH3.333 INCHES NOMINAL
MATERIALSTEEL COMP 630 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE IV FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEKNURLED NO. 1
HEAD DIAMETER1.970 INCHES MINIMUM AND
2.000 INCHES MAXIMUM
HEAD HEIGHT0.380 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW,GUN LOCK


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