NSN 5305-01-310-9996

Part Details | CLOSE TOLERANCE SCREW

5305-01-310-9996 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: HT813746ASM, HT8137-4-6ASM, HT813746ASM, HT8137-4-6ASM, ST3M430V46ASM, ST3M430V4-6ASM, ST3M430V46ASM, ST3M430V4-6ASM, HT271A46M, HT271A4-6M, ST3M430V46ASM, ST3M430V4-6ASM, BM33024V46U, BM33024V4-6U, HT271A46M, HT271A4-6M, 11017946ASM, 110179-4-6ASM, 11017946ASM, 110179-4-6ASM, WC813746A, WC8137-4-6A, 5305-01-310-9996, 01-310-9996, 5305013109996, 013109996

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 17, 198901-310-999629294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-310-9996
Part Number Cage Code Manufacturer
HT8137-4-6ASM92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT8137-4-6ASM06950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M430V4-6ASM76301BOEING COMPANY, THEDBA BOEING
ST3M430V4-6ASM58998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
HT271A4-6M73197HI-SHEAR CORPORATION
ST3M430V4-6ASM1VSL7HOUSTON PRECISION FASTENERS I, LP
BM33024V4-6U17446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT271A4-6ML4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
110179-4-6ASMK5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
110179-4-6ASM80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
WC8137-4-6A60516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-01-310-9996
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
FASTENER LENGTH0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE1 HEXAGON COUNTERSUNK
HEAD DIAMETER0.4750 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM
HEAD HEIGHT0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
FEATURES PROVIDED DRY FILM LUBRICANT AND O RING AND CETYL ALCOHOL LUBRICANT
SPECIAL FEATURESFLUORSILICONE RUBBER O-RING,PER MIL-R-25988 TY 1,CL 1,GR 70