1025-00-550-7180 COVER Index 5305-00-550-7183 SCREW,EYE

National Stock Number:
5305-00-550-7181

Federal Supply Class:
5305

National Item Identification Number:
005507181

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:
550718119204ARMY, UNITED STATES DEPARTMENT OF THE


Techincal Specification:
EXTENDED WASHER DIAMETER4.500 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.375 INCHES NOMINAL
FASTENER LENGTH22.375 INCHES NOMINAL
HEAD HEIGHT2.625 INCHES NOMINAL
HEAD STYLEHEXAGON EXTENDED WASHER
NONSTANDARD THREAD PITCH DIAMETER+3.7500 TO 3.7832 INCHES
SCREW MATERIALCOPPER ALLOY
SPECIAL FEATURESINTERNALLY THREADED FROM HEAD ENDSTARTING 3.062 IN. BELOW HEAD 22.188 IN. MIN,22.312 IN. MAX THD LG,2 1/2-2ACME-2G-LH THD SIZE AND HEAD COUNTERBORED 3.250 IN. W,0.250 IN. DEEP
WIDTH BETWEEN FLATS3.844 INCHES MINIMUM AND 3.875 INCHES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH22.188 INCHES MINIMUM AND 22.312 INCHES MAXIMUM
THREAD SERIES DESIGNATORACME


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