4730-00-273-8241 REDUCER,PIPE Index 5305-00-273-8252 SCREW,MACHINE

National Stock Number:
5305-00-273-8244

Federal Supply Class:
5305

National Item Identification Number:
002738244

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:
324929982577RAYTHEON COMPANY


Techincal Specification:
FASTENER LENGTH0.312 INCHES NOMINAL
HEAD HEIGHT0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
HEAD STYLESQUARE
MINIMUM TENSILE STRENGTH130000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.086 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTPASSIVATE
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONH+4-169 FSCM 82577 MFR REF SINGLE TREATMENT RESPONSE
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.276 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH56
THREAD SURFACE FINISH32.0 MICROINCHES
WIDTH BETWEEN FLATS0.188 INCHES NOMINAL


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