NSN 5305-00-288-2457

Part Details | CLOSE TOLERANCE SCREW

5305-00-288-2457 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.

Alternate Parts: HT8043511, HT8043-5-11, HT239PB511, HT239PB-5-11, BM19025511, BM19025-5-11, A147511, A147-5-11, NAS1581F5H9, NAS1581A5H9T, NAS1581A5H9, GB510L511, GB510L5-11, 106750511, 106750-5-11, 5305-00-288-2457, 00-288-2457, 5305002882457, 002882457

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 12, 197300-288-245729294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-00-288-2457
Part Number Cage Code Manufacturer
HT8043-5-1192215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT239PB-5-1173197HI-SHEAR CORPORATION
BM19025-5-1197928HUCK INTL INC
A147-5-1197928HUCK INTL INC
NAS1581F5H980205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
NAS1581A5H9T80205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
NAS1581A5H980205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
GB510L5-1126512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
106750-5-1180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-00-288-2457
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.476 INCHES MINIMUM AND 0.526 INCHES MAXIMUM
FASTENER LENGTH1.048 INCHES MINIMUM AND 1.078 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.429 INCHES MINIMUM AND 0.479 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.527 INCHES MINIMUM AND 0.552 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA80205-NAS1581 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD