NSN 5305-01-344-5533

Part Details | CLOSE TOLERANCE SCREW

5305-01-344-5533 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: ST3M430V49ASM, ST3M430V4-9ASM, HT813749ASM, HT8137-4-9ASM, HT813749ASM, HT8137-4-9ASM, ST3M430V49ASM, ST3M430V4-9ASM, HT271A49M, HT271A4-9M, HT271A49M, HT271A4-9M, ST3M430V49ASM, ST3M430V4-9ASM, HT813749ASM, HT8137-4-9ASM, 11017949ASM, 110179-4-9ASM, 5305-01-344-5533, 01-344-5533, 5305013445533, 013445533

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 31, 199101-344-553329294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HIGH-TORQUE

Cross Reference | NSN 5305-01-344-5533
Part Number Cage Code Manufacturer
ST3M430V4-9ASM92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT8137-4-9ASM92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT8137-4-9ASM06950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M430V4-9ASM76301BOEING COMPANY, THEDBA BOEING
HT271A4-9M73197HI-SHEAR CORPORATION
HT271A4-9ML4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
ST3M430V4-9ASMK5873RONEO PRESIDENT LTD
HT8137-4-9ASM0PTK6SPS TECHNOLOGIES INC
110179-4-9ASM80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-344-5533
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.469 INCHES NOMINAL
FASTENER LENGTH1.015 INCHES MINIMUM AND 1.062 INCHES MAXIMUM
HEAD STYLE6 CROWNED HEXAGON
HEAD DIAMETER0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM
HEAD HEIGHT0.051 INCHES MINIMUM AND 0.054 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
FEATURES PROVIDED DRY FILM LUBRICANT AND O RING