7050-01-617-8512 MEMORY,PORTABLE,SOLID STATE 4720-01-617-3185 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
5305-01-618-2485

Federal Supply Class:
5305

National Item Identification Number:
016182485

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
NAS1121-1180205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
FASTENER LENGTH0.949 INCHES MINIMUM AND 0.979 INCHES MAXIMUM
GRIP DIAMETER0.1365 INCHES MINIMUM AND 0.1375 INCHES MAXIMUM
GRIP LENGTH0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
HEAD HEIGHT0.074 INCHES MINIMUM AND 0.086 INCHES MAXIMUM
HEAD DIAMETER0.221 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
HEAD STYLEFLAT FILLISTER
INTERNAL DRIVE STYLEOFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.1380 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW,MACHINE-FLAT FILLISTER HEAD,CLOSE TOL.,SHORT THREAD,OFFSET CRUCIFORM
SPECIAL FEATURESOTHER SURFACES ARE 125 MICROINCHES
SPECIFICATION/STANDARD DATA80205-NAS1121 THRU 1128 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.276 INCHES NOMINAL
THREAD SERIES DESIGNATORUNJC
THREAD QUANTITY PER INCH32


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