5998-01-472-8142 CIRCUIT CARD ASSEMBLY Index 5998-01-472-8144 CIRCUIT CARD ASSEMBLY

National Stock Number:
5305-01-472-8143

Federal Supply Class:
5305

National Item Identification Number:
014728143

Description:
SCREW,MACHINE

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.


Manufacturer Information:
B18.24.1A05047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
S630NB00FAG14307ANCF105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS


Techincal Specification:
HEAD STYLEPAN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER0.312 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONASTM A 307, GRADE A ASSN STD SINGLE MATERIAL RESPONSE
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTZINC
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B 633 ASSN STD SINGLE TREATMENT RESPONSE
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES NOMINAL
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNF


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