NSN 5305-01-308-0170

Part Details | CLOSE TOLERANCE SCREW

5305-01-308-0170 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: HT813734ASM, HT8137-3-4ASM, HT813734ASM, HT8137-3-4ASM, ST3M430V34ASM, ST3M430V3-4ASM, STM430V34ASM, STM430V3-4ASM, ST3M430V34ASM, ST3M430V3-4ASM, HT271A34M, HT271A3-4M, ST3M430V34ASM, ST3M430V3-4ASM, BM33024V34UM, BM33024V3-4UM, BM33024V34M, BM33024V3-4M, BM33024V34M, BM33024V3-4M, HT271A34M, HT271A3-4M, 11017934ASM, 110179-3-4ASM, 11017934ASM, 110179-3-4ASM, WC813734AM, WC8137-3-4AM, 5305-01-308-0170, 01-308-0170, 5305013080170, 013080170

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 21, 198901-308-017029294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-308-0170
Part Number Cage Code Manufacturer
HT8137-3-4ASM92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT8137-3-4ASM06950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M430V3-4ASM76301BOEING COMPANY, THEDBA BOEING
STM430V3-4ASM76301BOEING COMPANY, THEDBA BOEING
ST3M430V3-4ASM58998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
HT271A3-4M73197HI-SHEAR CORPORATION
ST3M430V3-4ASM1VSL7HOUSTON PRECISION FASTENERS I, LP
BM33024V3-4UM17446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM33024V3-4M17446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM33024V3-4M97928HUCK INTL INC
HT271A3-4ML4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
110179-3-4ASMK5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
110179-3-4ASM80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
WC8137-3-4AM60516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-01-308-0170
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
FASTENER LENGTH0.640 INCHES MINIMUM AND 0.687 INCHES MAXIMUM
HEAD STYLE1 HEXAGON COUNTERSUNK
HEAD DIAMETER0.376 INCHES MINIMUM AND 0.381 INCHES MAXIMUM
HEAD HEIGHT0.044 INCHES MINIMUM AND 0.046 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
FEATURES PROVIDED O RING AND DRY FILM LUBRICANT AND CETYL ALCOHOL LUBRICANT