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National Stock Number:
5305-01-493-3473
Federal Supply Class:
5305
National Item Identification Number:
014933473
Description:
SETSCREW
Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.
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Manufacturer Information:
| AN565B428H4 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 40 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 0.250 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND | | 53.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | HEADLESS (SETSCREW) | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.050 INCHES MINIMUM AND | | 0.051 INCHES MAXIMUM | | POINT STYLE | CONE | | POINT CHAMFER ANGLE | 90.0 DEGREES NOMINAL | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 88044 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN565B428H4 |
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