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National Stock Number:
5305-01-079-0306
Federal Supply Class:
5305
National Item Identification Number:
010790306
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:
| 154274-2 | 21877 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| CHAMFER ANGLE | 30.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.984 INCHES MINIMUM AND 2.031 INCHES MAXIMUM | | HEAD DIAMETER | 0.550 INCHES MINIMUM AND 0.563 INCHES MAXIMUM | | HEAD HEIGHT | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-286,CLASS A FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | COPPER ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.250 INCHES MINIMUM AND 1.281 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | WIDTH ACROSS FLATS | 0.312 INCHES MINIMUM AND 0.316 INCHES MAXIMUM |
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