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National Stock Number:
5305-01-414-5002
Federal Supply Class:
5305
National Item Identification Number:
014145002
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:
| 211038341 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 211095647 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 512-6405698-24 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNRC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.525 INCHES MAXIMUM | | FASTENER LENGTH | 0.525 INCHES MINIMUM AND | | 0.625 INCHES MAXIMUM | | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE | | NICKEL ALLOY 400 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-F-18240 MFR REF 15TH MATERIAL RESPONSE LOCKING FEATURE | | QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE FASTENER | | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.480 INCHES MINIMUM AND | | 0.531 INCHES MAXIMUM | | COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND | | 84.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL | | LOCKING FEATURE | PATCH THREADS |
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