5305-00-514-8249 SCREW,MACHINE Index 5305-00-514-8254 SCREW,MACHINE

National Stock Number:
5305-00-514-8251

Federal Supply Class:
5305

National Item Identification Number:
005148251

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:
LS15267V3-2206710VALLEY-TODECO, INC.
LS15267V3-2206725SPS TECHNOLOGIES, LLC
LS15267V3-2206950HOWMET GLOBAL FASTENING SYSTEMS INC
LS15267V3-2217446HUCK INTERNATIONAL, INC
LS15267V3-2227624SPS TECHNOLOGIES LLC
LS15267V3-2256878SPS TECHNOLOGIES, LLC
LS15267V3-226Z800A AND M AEROSPACE, INC.
LS15267V3-2292215HOWMET GLOBAL FASTENING SYSTEMS INC
LS15267V3-2293907TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS
LS15267V3-2298897LOCKHEED MARTIN CORP


Techincal Specification:
FASTENER LENGTH1.359 INCHES MINIMUM AND 1.406 INCHES MAXIMUM
HEAD HEIGHT0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
HEAD STYLEHEXAGON
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER0.190 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONNAS621,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE
SCREW MATERIALTITANIUM ALLOY UNS R54520
WIDTH BETWEEN FLATS0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.297 INCHES MINIMUM AND 1.406 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNJF


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