NSN 5305-01-266-5361

Part Details | CLOSE TOLERANCE SCREW

5305-01-266-5361 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: HT4075V4824, HT4075V4-8-24, HT4075V4824, HT4075V4-8-24, HT4075V4824, HT4075V4-8-24, HT4075V4824, HT4075V4-8-24, HT4075V4824, HT4075V4-8-24, HT4075V4824, HT4075V4-8-24, HT4075V4824, HT4075V4-8-24, 5305-01-266-5361, 01-266-5361, 5305012665361, 012665361

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 27, 198701-266-536129294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-266-5361
Part Number Cage Code Manufacturer
HT4075V4-8-2492215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4075V4-8-2476301BOEING COMPANY, THEDBA BOEING
HT4075V4-8-2473197HI-SHEAR CORPORATION
HT4075V4-8-2417446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT4075V4-8-2497928HUCK INTL INC
HT4075V4-8-2456878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
HT4075V4-8-2480539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-266-5361
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.453 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
FASTENER LENGTH0.953 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
GRIP DIAMETER0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
FEATURES PROVIDED CETYL ALCOHOL LUBRICANT AND FINISHED HEAD
SPECIAL FEATURESTHD HOLE IN HD 0.138-32 UNJC-3B; DIST FM TOP OF HD TO INJECTION PORT 0.240 IN. INJECTION PORT 0.120 IN. LG BY 0.060 IN. W
SPECIFICATION/STANDARD DATA73197-HT4075 MANUFACTURERS STANDARD