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National Stock Number:
5305-00-297-8081
Federal Supply Class:
5305
National Item Identification Number:
002978081
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| SC9918 | 92755 | NORTHROP GRUMMAN SYSTEMS CORP |
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Techincal Specification:
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY THREAD LENGTH | | FASTENER LENGTH | 3.500 INCHES NOMINAL | | HEAD HEIGHT | 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL | | NOMINAL THREAD DIAMETER | 0.437 INCHES | | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10 STYLE | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 3.500 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 14 | | THREAD SERIES DESIGNATOR | UNC | | WIDTH BETWEEN FLATS | 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
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