1680-01-549-4986 STANDOFF,LOCKING TH Index 5325-01-549-4988 GROMMET,AIRCRAFT,MA

National Stock Number:
5305-01-549-4987

Federal Supply Class:
5305

National Item Identification Number:
015494987

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:
NAS8203U980205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
FASTENER LENGTH0.557 INCHES MINIMUM AND 0.560 INCHES MAXIMUM
HEAD STYLEPAN
SCREW MATERIALTITANIUM ALLOY UNS R54520
SPECIAL FEATURESPAN HEAD, RIBBED CRUCFORM RECESS
THREAD CLASSA3
THREAD SERIES DESIGNATORUNJF


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