NSN 5305-01-187-5838

Part Details | CLOSE TOLERANCE SCREW

5305-01-187-5838 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: CA21017306, CA21017-3-06, LE11100013006, LE111-0001-3006, FIT0100013006, FIT01-0001-3006, CA21017306, CA21017-3-06, 5305-01-187-5838, 01-187-5838, 5305011875838, 011875838

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 23, 198401-187-583829294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-187-5838
Part Number Cage Code Manufacturer
CA21017-3-0629372ARCONIC GLOBAL FASTENERS & RINGS,INC.
LE111-0001-300643999BOEING COMPANY, THEDBA BOEING
FIT01-0001-300658998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
CA21017-3-0658998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
Technical Data | NSN 5305-01-187-5838
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.425 INCHES MINIMUM AND 0.465 INCHES MAXIMUM
FASTENER LENGTH0.810 INCHES MINIMUM AND 0.830 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD STYLE3 DISHED HEXAGON
HEAD DIAMETER0.360 INCHES MINIMUM AND 0.374 INCHES MAXIMUM
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM
GRIP LENGTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
SPECIAL FEATURES3 KEYWAYS 0.780 IN. MIN. AND 0.800 IN. MAX. LONG AND 0.030 INCH MIN. AND 0.034 INCH MAX. WIDE MACHINED IN SHANK. BORE MACHINED IN THREAD END TO RECEIVE PLUG