5310-01-223-6553 NUT,PLAIN,HEXAGON Index 5310-01-223-6555 NUT

National Stock Number:
5305-01-223-6554

Federal Supply Class:
5305

National Item Identification Number:
012236554

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:
1376-61-16144114BAE SYSTEMS LAND & ARMAMENTS L.P.
1376-61-161A0199FINMECCANICA SPA
551972753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS6H
FASTENER LENGTH81.00 MILLIMETERS NOMINAL
HEAD DIAMETER8.0 MILLIMETERS NOMINAL
HEAD HEIGHT2.0 MILLIMETERS NOMINAL
HEAD STYLEROUND WITH WRENCH FLATS
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER4.0 MILLIMETERS
SCREW MATERIALCOPPER ALLOY
WIDTH BETWEEN FLATS6.0 MILLIMETERS NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH8.0 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS0.7


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