5305-00-502-5250 SCREW,MACHINE Index 3040-00-502-5252 COLLAR,SHAFT

National Stock Number:
5305-00-502-5251

Federal Supply Class:
5305

National Item Identification Number:
005025251

Description:
SCREW,MACHINE

Detail:
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.


Manufacturer Information:
502525119204ARMY, UNITED STATES DEPARTMENT OF THE
5305-502-5251SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
5305005025251A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
5305005025251SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE


Techincal Specification:
COUNTERSINK ANGLE90.0 DEGREES NOMINAL
FASTENER LENGTH0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM
HEAD DIAMETER0.250 INCHES NOMINAL
HEAD STYLEOVAL COUNTERSUNK
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.164 INCHES
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTPHOSPHATE
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM
THREAD QUANTITY PER INCH36
THREAD SERIES DESIGNATORUNF


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