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National Stock Number: 5305-01-197-4499
Federal Supply Class: 5305
National Item Identification Number: 011974499
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:
321-1588268-27 | 02310 | PATTONAIR USA INC | 321-1588268-27 | 56878 | SPS TECHNOLOGIES, LLC | 321-1588268-27 | 64547 | HONEYWELL INTERNATIONAL, INC | 321-1588268-27 | 83298 | ALLIED SIGNAL INC AEROSPACE EQUIPMENT SYSTEMS EATONTOWN SITE |
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Techincal Specification:
FASTENER LENGTH | 0.530 INCHES MINIMUM AND 0.658 INCHES MAXIMUM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL | HEAD DIAMETER | 0.427 INCHES MINIMUM AND 0.437 INCHES MAXIMUM | HEAD HEIGHT | 0.250 INCHES MAXIMUM | HEAD STYLE | FLAT CHAMFER | HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON | HOLE DIAMETER | 0.046 INCHES NOMINAL | HOLE QUANTITY | 1 | HOLE TYPE | DRILLED | INTERNAL DRIVE STYLE | HEXAGON | MATERIAL DOCUMENT AND CLASSIFICATION | 66 ASSN STD ALL MATERIAL RESPONSES OVERALL | MATERIAL | STEEL OVERALL | PROPRIETARY CHARACTERISTICS | PACS | NOMINAL THREAD DIAMETER | 0.190 INCHES | SPECIAL FEATURES | BRONZE CHROMATE; GROOVE FOR O9RING UNDER HEAD | WIDTH ACROSS FLATS | 0.250 INCHES MINIMUM | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 32 | THREAD SERIES DESIGNATOR | UNF |
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