5305-01-020-5929 SCREW,CAP,HEXAGON HEAD Index 5940-01-020-5931 TERMINAL,LUG

National Stock Number:
5305-01-020-5930

Federal Supply Class:
5305

National Item Identification Number:
010205930

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:
NAS1184E404348LAWRENCE ENGINEERING AND SUPPLY INC
NAS1184E407851NOR-CAL SUPPLY CO
NAS1184E408938AIR INDUSTRIES CO INC
NAS1184E416941LONG-LOK LLC
NAS1184E430902F AND C SALES INC
NAS1184E453606PLASTIC AND METAL PRODUCTS CORPORATION
NAS1184E456878SPS TECHNOLOGIES, LLC
NAS1184E458998FASTENER INNOVATION TECHNOLOGY, INC.
NAS1184E473197HI-SHEAR CORPORATION
NAS1184E480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1184E480539SPS TECHNOLOGIES, LLC
NAS1184E492215HOWMET GLOBAL FASTENING SYSTEMS INC
NAS1184E498524MONOGRAM AEROSPACE FASTENERS, INC
NAS1184E4L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
FASTENER LENGTH0.660 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
GRIP LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
HEAD HEIGHT0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
HEAD DIAMETER0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD STYLEPAN NO. 2
INTERNAL DRIVE STYLEOFFSET CRUCIFORM (TORQUE SET)
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5737 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIALIRON ALLOY 660 FASTENER
MATERIALPLASTIC LOCKING FEATURE
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIFICATION/STANDARD DATA80205-NAS1184 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 FASTENER
SURFACE TREATMENTPASSIVATE FASTENER
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF


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