5120-00-808-7824 WRENCH,SPANNER Index 5305-00-808-7832 SCREW,MACHINE

National Stock Number:
5305-00-808-7831

Federal Supply Class:
5305

National Item Identification Number:
008087831

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:
51B221-270JRC1NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
51B221-2776823NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
FASTENER LENGTH1.963 INCHES NOMINAL
HEAD DIAMETER0.381 INCHES NOMINAL
HEAD HEIGHT0.118 INCHES NOMINAL
HEAD STYLEROUND
INTERNAL DRIVE STYLETORQUE SET
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTCADMIUM
THREAD LENGTH0.276 INCHES MINIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32


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