5340-01-441-9206 BUTTON,DOOR Index 5306-01-441-9208 BOLT,MACHINE

National Stock Number:
5305-01-441-9207

Federal Supply Class:
5305

National Item Identification Number:
014419207

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.


Manufacturer Information:
21108349553711NAVAL SEA SYSTEMS COMMAND
21108349596169ELECTRIC BOAT CORPORATION
6409800 ITEM TD-H4430-3,53711NAVAL SEA SYSTEMS COMMAND
D4000019632-TD-H4430-353711NAVAL SEA SYSTEMS COMMAND
M1222RN6C258NALN81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
D4000019632-TD-H4430-396169ELECTRIC BOAT CORPORATION


Techincal Specification:
FASTENER LENGTH3.625 INCHES NOMINAL
HARDNESS RATING80.0 ROCKWELL B MINIMUM FASTENER
HEAD HEIGHT0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM
HEAD STYLEHEXAGON
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
MATERIALNICKEL ALLOY 400 FASTENER
MATERIALPLASTIC POLYAMIDE NYLON LOCKING FEATURE
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.000 INCHES NOMINAL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH16


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