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National Stock Number:
5305-01-273-6244
Federal Supply Class:
5305
National Item Identification Number:
012736244
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:
| 3176207-C-137 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.387 INCHES MINIMUM AND | | 0.500 INCHES MAXIMUM | | FASTENER LENGTH | 0.470 INCHES MINIMUM AND | | 0.500 INCHES MAXIMUM | | MATERIAL | PLASTIC LOCKING FEATURE | | STEEL FASTENER | | SURFACE TREATMENT | ZINC AND | | CHROMATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE FASTENER | | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND | | 45.0 ROCKWELL C MAXIMUM FASTENER | | MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 150000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.457 INCHES MINIMUM AND | | 0.469 INCHES MAXIMUM | | HEAD HEIGHT | 0.306 INCHES MINIMUM AND | | 0.312 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.250 INCHES NOMINAL | | LOCKING FEATURE | PATCH THREADS |
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