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National Stock Number:
5305-01-445-5489
Federal Supply Class:
5305
National Item Identification Number:
014455489
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:
| 211055628 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 754-6407500 ITEM 76 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNRC | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.316 INCHES MINIMUM AND | | 0.608 INCHES MAXIMUM | | FASTENER LENGTH | 0.625 INCHES NOMINAL | | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE | | STEEL COMP 304 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | HARDNESS RATING | 80.0 ROCKWELL B MINIMUM FASTENER | | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 70000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.600 INCHES MINIMUM AND | | 0.656 INCHES MAXIMUM | | COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND | | 84.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.188 INCHES MINIMUM | | LOCKING FEATURE | PATCH OR | | PELLET OR | | STRIP THREADS |
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