5305-01-158-6248 SCREW,CLOSE TOLERANCE Index 5305-01-158-6250 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-158-6249

Federal Supply Class:
5305

National Item Identification Number:
011586249

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:
NAS1123E1604348LAWRENCE ENGINEERING AND SUPPLY INC
NAS1123E1607871AIR FORCE MISSILE DEVELOPMENT CENTER
NAS1123E1608938AIR INDUSTRIES CO INC
NAS1123E1617446HUCK INTERNATIONAL, INC
NAS1123E1630485QUALIFIED AIR COMPONENTS INC.
NAS1123E1630902F AND C SALES INC
NAS1123E1650568APCOM INC
NAS1123E1653606PLASTIC AND METAL PRODUCTS CORPORATION
NAS1123E1656878SPS TECHNOLOGIES, LLC
NAS1123E1673197HI-SHEAR CORPORATION
NAS1123E1680205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1123E1680539SPS TECHNOLOGIES, LLC
NAS1123E1692215HOWMET GLOBAL FASTENING SYSTEMS INC
NAS1123E1697928HUCK INTL INC


Techincal Specification:
FASTENER LENGTH1.261 INCHES MINIMUM AND 1.291 INCHES MAXIMUM
GRIP DIAMETER0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
HEAD DIAMETER0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
HEAD HEIGHT0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEOFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
SPECIFICATION/STANDARD DATA80205-NAS1123 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD LENGTH0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH32


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