NSN 5305-00-128-2592

Part Details | MACHINE SCREW

5305-00-128-2592 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Alternate Parts: 7678191, 767819-1, 5305-00-128-2592, 00-128-2592, 5305001282592, 001282592

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 13, 196800-128-259206657 ( SCREW, MACHINE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-128-2592
Part Number Cage Code Manufacturer
767819-198897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
Technical Data | NSN 5305-00-128-2592
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM
FASTENER LENGTH0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
SCREW MATERIAL STEEL COMP 8630
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD STYLE6 DISHED HEXAGON
HEAD DIAMETER0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM
HEAD HEIGHT0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM
INTERNAL DRIVE STYLE0 CROSS RECESS TYPE 1
SPECIAL FEATURESTHREAD RELIEF GROOVE 0.186 TO 0.196 IN. DIA,0.040 TO 0.060 IN. FROM BEARING SURFACE OF HEAD