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National Stock Number:
5305-01-443-6678
Federal Supply Class:
5305
National Item Identification Number:
014436678
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:
| 3387C77H03 | 04804 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | FF-S-85 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | LL-HX3-4846 | 14153 | DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA |
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Techincal Specification:
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-85 | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 04804 | | DESIGN CONTROL REFERENCE | 3387C77H03 | | THREAD SERIES DESIGNATOR | UNC | | THREAD LENGTH | 1.060 INCHES MINIMUM | | FASTENER LENGTH | 2.250 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HEAD STYLE | HEXAGON | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD HEIGHT | 0.350 INCHES MINIMUM AND | | 0.363 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.437 INCHES NOMINAL | | TEST DATA DOCUMENT | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). | | SPECIAL TEST FEATURES | SPECIAL QUALITY CONTROL TESTING | | DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY MATERIAL | | CRITICALITY CODE JUSTIFICATION | ZZZY | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81349 |
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