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National Stock Number:
5305-01-273-6848
Federal Supply Class:
5305
National Item Identification Number:
012736848
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:
| NAS1189V4R12A | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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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 | 0.552 INCHES MINIMUM AND | | 0.644 INCHES MAXIMUM | | FASTENER LENGTH | 0.729 INCHES MINIMUM AND | | 0.750 INCHES MAXIMUM | | MATERIAL | PLASTIC LOCKING FEATURE | | TITANIUM ALLOY UNS R56400 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS4967 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.442 INCHES MINIMUM AND | | 0.507 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | LOCKING FEATURE | PATCH OR | | PELLET OR | | STRIP THREADS | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 32.0 MICROINCHES GRIP | | 32.0 MICROINCHES THREADS | | SPECIAL FEATURES | INTERNAL DRIVE RIBBED |
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