5305-01-050-1491, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-050-1491

Federal Supply Class:
5305

National Item Identification Number:
010501491

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.

Manufacturer Information:

3176207-C-274

10001

NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER

Techincal Specification:

FASTENER LENGTH	4.920 INCHES MINIMUM AND 5.000 INCHES MAXIMUM
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM FASTENER
HEAD DIAMETER	0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
HEAD HEIGHT	0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PATCH THREADS
MATERIAL	PLASTIC POLYAMIDE NYLON LOCKING FEATURE
MATERIAL	STEEL FASTENER
MINIMUM YIELD STRENGTH	155000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.500 INCHES
SPECIAL FEATURES	CRITICAL ITEM HYDROGEN EMBRITTLEMENT RELIEF REQUIRED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633,TY 2,CL 3 ASSN STD SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	ZINC AND CHROMATE FASTENER
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.500 INCHES MINIMUM
THREAD QUANTITY PER INCH	13
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS	0.375 INCHES NOMINAL

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