NSN 5305-01-195-7945

Part Details | CLOSE TOLERANCE SCREW

5305-01-195-7945 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: HT81375AS, HT8137-5AS, HT813755AS, HT8137-5-5AS, ST3M430V55AS, ST3M430V5-5AS, HT271A55, HT271A5-5, BM33024V55U, BM33024V5-5U, HT271A55, HT271A5-5, HT81375AS, HT8137-5AS, 11017955AS, 110179-5-5AS, 11017955AS, 110179-5-5AS, 5305-01-195-7945, 01-195-7945, 5305011957945, 011957945

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 03, 198401-195-794529294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-195-7945
Part Number Cage Code Manufacturer
HT8137-5AS92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT8137-5-5AS92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M430V5-5AS76301BOEING COMPANY, THEDBA BOEING
HT271A5-573197HI-SHEAR CORPORATION
BM33024V5-5U97928HUCK INTL INC
HT271A5-5L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
HT8137-5ASK5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
110179-5-5AS56878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
110179-5-5AS80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-195-7945
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.506 INCHES MINIMUM AND 0.573 INCHES MAXIMUM
FASTENER LENGTH0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
HEAD STYLE1 HEXAGON COUNTERSUNK
HEAD DIAMETER0.6287 INCHES MINIMUM AND 0.6335 INCHES MAXIMUM
HEAD HEIGHT0.0878 INCHES MINIMUM AND 0.0899 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
GRIP DIAMETER0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
SPECIAL FEATURESCETYL ALCOHOL LUBRICATION,FURNISHED WITH O RING