NSN 5305-01-008-2892

Part Details | CLOSE TOLERANCE SCREW

5305-01-008-2892 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: HT80994D9, HT8099-4D9, HT193LB4H9, HT193LB4H9, GB511J4D9, GB511JD9, 67077D49, 67077D4-9, 67077D49, 67077D4-9, 5305-01-008-2892, 01-008-2892, 5305010082892, 010082892

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 19, 197501-008-289229294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

HIGH-TORQUE

Cross Reference | NSN 5305-01-008-2892
Part Number Cage Code Manufacturer
HT8099-4D992215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT193LB4H973197HI-SHEAR CORPORATION
HT193LB4H9L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
GB511J4D926512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
GB511JD926512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
67077D4-956878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
67077D4-980539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-008-2892
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD LENGTH0.400 INCHES MINIMUM AND 0.467 INCHES MAXIMUM
FASTENER LENGTH0.972 INCHES MINIMUM AND 1.019 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE2 DISHED HEXAGON
HEAD DIAMETER0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM
HEAD HEIGHT0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
HOLE TYPE DRILLED
HOLE QUANTITY1
HOLE DIAMETER0.037 INCHES NOMINAL
GRIP LENGTH0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT