5305-00-688-1448 SCREW,MACHINE Index 5305-00-688-1456 SCREW,MACHINE

National Stock Number:
5305-00-688-1455

Federal Supply Class:
5305

National Item Identification Number:
006881455

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:
65028235211LAUSON DIVISION OF TECUMSEH PRODUCTS CO
65028289759POWER PRODUCTS DIVISION OF TECUMSEH PRODUCTS CO
AN515-416-2088044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
FFS9281348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD DIAMETER0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM
HEAD HEIGHT0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
HEAD STYLEROUND
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.250 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1S STYLE
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTCADMIUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.250 INCHES NOMINAL
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH20


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