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National Stock Number:
5305-01-308-0205
Federal Supply Class:
5305
National Item Identification Number:
013080205
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.
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Manufacturer Information:
| AFS0050-166-000 | 54696 | METRONICS INC SUB OF JOHNSON CARLYLE MACHINE CO |
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Techincal Specification:
| FASTENER LENGTH | 2.269 INCHES MINIMUM AND 2.276 INCHES MAXIMUM | | HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM | | HEAD HEIGHT | 0.161 INCHES MINIMUM AND 0.163 INCHES MAXIMUM | | HEAD DIAMETER | 0.475 INCHES MINIMUM AND 0.480 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SLOT | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | SCREW MATERIAL | STEEL COMP 431 | | SHANK SURFACE FINISH | 32.0 MICROINCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.142 INCHES MINIMUM AND 0.157 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 18 |
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