2520-00-062-4120 VALVE ASSEMBLY,TRANSMISSION Index 2520-00-062-4126 SEAL,PLAIN

National Stock Number:
5305-00-062-4125

Federal Supply Class:
5305

National Item Identification Number:
000624125

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:
53B334-2006725SPS TECHNOLOGIES, LLC
53B334-2006950HOWMET GLOBAL FASTENING SYSTEMS INC
53B334-200JRC1NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
53B334-2027624SPS TECHNOLOGIES LLC
53B334-2073197HI-SHEAR CORPORATION
53B334-2076823NORTHROP GRUMMAN SYSTEMS CORPORATION
53B334-2079U29NORTHROP GRUMMAN SYSTEMS CORPORATION
53B334-2080539SPS TECHNOLOGIES, LLC
53B334-2092215HOWMET GLOBAL FASTENING SYSTEMS INC
53B334-20L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH1.735 INCHES NOMINAL
HEAD DIAMETER0.451 INCHES MINIMUM AND 0.483 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SCREW MATERIALSTEEL
SCREW SURFACE TREATMENTCADMIUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.485 INCHES MINIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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