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National Stock Number:
5305-00-865-1656
Federal Supply Class:
5305
National Item Identification Number:
008651656
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:
| 4491153PC36 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 4491158-B-6 | 25685 | NAVAL SHIP ENGINEERING CENTER PHILADELPHIA DIVISION SUBMARINE ANTENNA QUALITY ASSURANCE | | FFS86TYPE6 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | 60-16-1362 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY MATERIAL | | FASTENER LENGTH | 0.500 INCHES NOMINAL | | HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY R-405 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | NONDEFINITIVE SPEC/STD DATA | 6 TYPE | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
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