NSN 5305-00-005-7251

Part Details | MACHINE SCREW

5305-00-005-7251 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: SMB502988, 5305-00-005-7251, 00-005-7251, 5305000057251, 000057251

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 16, 197200-005-725106657 ( SCREW, MACHINE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-005-7251
Part Number Cage Code Manufacturer
SMB50298880063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 5305-00-005-7251
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.430 INCHES MINIMUM AND 0.470 INCHES MAXIMUM
FASTENER LENGTH0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
SCREW MATERIAL STEEL COMP 303
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENT PASSIVATE
HEAD STYLE HEXAGON
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
INTERNAL DRIVE STYLE0 CROSS RECESS TYPE 1