5305-01-132-8527 SCREW,CLOSE TOLERANCE Index 5305-01-132-8529 SCREW ASSEMBLY,PANEL

National Stock Number:
5305-01-132-8528

Federal Supply Class:
5305

National Item Identification Number:
011328528

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:
BM19045-614A17446HUCK INTERNATIONAL, INC
BM19045-614A97928HUCK INTL INC
GB510CE6-1426512NORTHROP GRUMMAN SYSTEMS CORPORATION
GB510N6A1426512NORTHROP GRUMMAN SYSTEMS CORPORATION
HT326-6A1473197HI-SHEAR CORPORATION
HT326-6A14L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
SFH22D6A1456878SPS TECHNOLOGIES, LLC
SFH22D6A1480539SPS TECHNOLOGIES, LLC
HT8181F6-1492215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH1.259 INCHES MINIMUM AND 1.306 INCHES MAXIMUM
GRIP LENGTH0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM
GRIP DIAMETER0.6580 INCHES MINIMUM AND 0.6582 INCHES MAXIMUM
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.698 INCHES MINIMUM AND 0.762 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
SPECIFICATION/STANDARD DATA26512-GB510N MANUFACTURERS STANDARD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837 TYPE 2 CLASS 2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR CADMIUM AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.374 INCHES MINIMUM AND 0.441 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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