5305-00-022-0685, SCREW,CAP,HEXAGON HEAD

5340-00-022-0693 CAP-PLUG,PROTECTIVE,DUST AND MOI

National Stock Number:
5305-00-022-0685

Federal Supply Class:
5305

National Item Identification Number:
000220685

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:

220685	21450	ARMY WEAPONS COMMAND ATTN AMSWE-REE-S
220685	24617	GENERAL MOTORS CORP
220685	7X677	GENERAL MOTORS LLC
FFS85TYPE2STYLE10P	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.594 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	0.750 INCHES NOMINAL
HARDNESS RATING	95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
HEAD HEIGHT	0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	55000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	55000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.107 INCHES NOMINAL FIRST HOLE
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.594 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
THREAD QUANTITY PER INCH	16
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS	0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM

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