5360-00-980-5250 SPRING,HELICAL,COMPRESSION Index 5305-00-980-5252 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-00-980-5251

Federal Supply Class:
5305

National Item Identification Number:
009805251

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:
106456-3-256878SPS TECHNOLOGIES, LLC
106456-3-280539SPS TECHNOLOGIES, LLC
GB510DC3-226512NORTHROP GRUMMAN SYSTEMS CORPORATION
GB510L3-226512NORTHROP GRUMMAN SYSTEMS CORPORATION
GB510DC3-227624SPS TECHNOLOGIES LLC
GB510DC3-258845ABOUNDING SECURITY INC DIV OF MAA CORP
HT8043-3-206950HOWMET GLOBAL FASTENING SYSTEMS INC
HT239PB3-273197HI-SHEAR CORPORATION
HT8043-3-292215HOWMET GLOBAL FASTENING SYSTEMS INC
HT8043-3-2C4293ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH
HT239PB3-2C4293ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH
HT239PB3-2R1120SATAIR A/S


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH0.401 INCHES NOMINAL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
HEAD DIAMETER0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.276 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32


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