NSN 5305-01-386-2538

Part Details | MACHINE SCREW

5305-01-386-2538 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: FFS92, FF-S-92, 3250056000, 325-0056-000, 3250056000, 325-0056-000, 3250056000, 325-0056-000, 5305-01-386-2538, 01-386-2538, 5305013862538, 013862538

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 01, 199401-386-253806657 ( SCREW, MACHINE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

CROSS RECESS TYPE II

Cross Reference | NSN 5305-01-386-2538
Part Number Cage Code Manufacturer
FF-S-9281348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
325-0056-0001GP79PILGRIM SCREW CORPORATIONDIV ARIZONA
325-0056-00013499ROCKWELL COLLINS, INC.DBA GOVERNMENT SYSTEMS
325-0056-0001Y153STILLWATER FASTENERS LLC
Technical Data | NSN 5305-01-386-2538
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.187 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
FASTENER LENGTH1.187 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
SCREW MATERIAL STEEL CORROSION RESISTING
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE AND 66 FED STD SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENT PASSIVATE
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
HEAD STYLE HEXAGON
HEAD HEIGHT0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
INTERNAL DRIVE STYLE4 CROSS RECESS TYPE II
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE