NSN 5305-00-094-6874

Part Details | CLOSE TOLERANCE SCREW

5305-00-094-6874 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: ST3M455471, ST3M455-4-7-1, 11907471, 11907-4-7-1, 5305-00-094-6874, 00-094-6874, 5305000946874, 000946874

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 06, 197200-094-687429294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HIGH-TORQUE

Cross Reference | NSN 5305-00-094-6874
Part Number Cage Code Manufacturer
ST3M455-4-7-176301BOEING COMPANY, THEDBA BOEING
11907-4-7-159563REID PRODUCTS INC.DBA REID PRODUCTS
Technical Data | NSN 5305-00-094-6874
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.326 INCHES MINIMUM
FASTENER LENGTH0.835 INCHES NOMINAL
HEAD STYLE6 CROWNED HEXAGON
HEAD DIAMETER0.389 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM
HEAD HEIGHT0.015 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.438 INCHES NOMINAL
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM