5305-00-274-0827 SCREW,MACHINE Index 5305-00-274-0831 SCREW,MACHINE

National Stock Number:
5305-00-274-0828

Federal Supply Class:
5305

National Item Identification Number:
002740828

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:
AN509-716R34REV288044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH2.188 INCHES MINIMUM AND 2.234 INCHES MAXIMUM
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
HEAD DIAMETER0.805 INCHES MINIMUM AND 0.890 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESLOT
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.438 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW,MACHINE
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OR AN-S-9 MIL STD SINGLE MATERIAL RESPONSE
SCREW MATERIALSTEEL COMP 8630
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2CL 3 FED SPEC SINGLE TREATMENT RESPONSE
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.572 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNF


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