NSN 5305-01-043-1879

Part Details | CLOSE TOLERANCE SCREW

5305-01-043-1879 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: HT8181F311, HT8181F3-11, HT3263A11, HT326-3A11, BM19045311A, BM19045-3-11A, BM19045311A, BM19045-3-11A, HT3263A11, HT326-3A11, GB510N3A11, SFH22D3A11, SFH22D3A11, 5305-01-043-1879, 01-043-1879, 5305010431879, 010431879

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 21, 197701-043-187929294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-043-1879
Part Number Cage Code Manufacturer
HT8181F3-1192215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT326-3A1173197HI-SHEAR CORPORATION
BM19045-3-11A17446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM19045-3-11A97928HUCK INTL INC
HT326-3A11L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
GB510N3A1126512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
SFH22D3A1156878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
SFH22D3A1180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-043-1879
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.211 INCHES MINIMUM AND 0.278 INCHES MAXIMUM
FASTENER LENGTH0.908 INCHES MINIMUM AND 0.955 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.325 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM
GRIP DIAMETER0.1885 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA26512-GB510N MANUFACTURERS STANDARD
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT