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National Stock Number:
5305-01-256-5199
Federal Supply Class:
5305
National Item Identification Number:
012565199
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:
| 47B530980P4 | 23991 | LOCKHEED MARTIN CORPORATION | | 47B530980P4 | 79272 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.542 INCHES MINIMUM AND | | 0.609 INCHES MAXIMUM | | FASTENER LENGTH | 0.604 INCHES MINIMUM AND | | 0.609 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-865 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.218 INCHES MINIMUM AND | | 0.226 INCHES MAXIMUM | | HEAD HEIGHT | 0.134 INCHES MINIMUM AND | | 0.138 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.109 INCHES MINIMUM AND | | 0.111 INCHES MAXIMUM | | SPECIAL FEATURES | SUPPLEMENTAL COATING WITH CHROMATE OPTIONAL NO MIN. THICKNESS REQUIRED,BUT 100 PERCENT COVERAGE IS REQUIRED | | CRITICALITY CODE JUSTIFICATION | SUPP | | NUCLEAR HARDNESS CRITICAL FEATURE | HARDENED | | SUPPLEMENTARY FEATURES | ITEM HAS OTHER CRITICAL FEATURES SUCH AS TOLERANCE, FIT RESTRICTIONS OR APPLICATION AS WELL AS BEING NUCLEAR HARD |
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