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National Stock Number:
5305-00-901-4417
Federal Supply Class:
5305
National Item Identification Number:
009014417
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| 202-15500-4-19 | 80378 | TRIUMPH AEROSTRUCTURES, LLC | | AS110-04-19 | 84256 | AVIBANK MFG., INC. | | CA4850-04-19 | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. | | VP1072-4-19 | 70236 | TACTAIR FLUID CONTROLS INC | | VP1072-4-19 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.315 INCHES NOMINAL | | FASTENER LENGTH | 1.570 INCHES NOMINAL | | MATERIAL | STEEL COMP 8740 OR | | STEEL COMP 4340 OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE HEAD | | PASSIVATE SPRING | | CADMIUM AND | | CHROMATE THREADS | | HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND | | 58.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | CROWNED HEXAGON | | HEAD HEIGHT | 0.126 INCHES MINIMUM AND | | 0.141 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | LOCKING FEATURE | PELLET GRIP | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 32.0 MICROINCHES THREADS | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.521 INCHES MINIMUM AND | | 1.537 INCHES MAXIMUM FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND | | 0.086 INCHES MAXIMUM FIRST HOLE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 80378 | | DESIGN CONTROL REFERENCE | 202-15500-4-19 |
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