5305-01-452-9041, SCREW,CAP,SOCKET HEAD

5342-01-452-9040 MOUNT,RESILIENT,WEAPON SYSTEM

National Stock Number:
5305-01-452-9041

Federal Supply Class:
5305

National Item Identification Number:
014529041

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:

FF-S-86	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS24667-52ZL	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

COUNTERSINK ANGLE	80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
FASTENER LENGTH	0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM FASTENER
HEAD DIAMETER	0.720 INCHES MINIMUM AND 0.781 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PATCH OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL	PLASTIC POLYAMIDE NYLON LOCKING FEATURE
MATERIAL	STEEL UNS K03104 FASTENER
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
WIDTH ACROSS FLATS	0.219 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 TY2 CLFE/ZN5 ASSN STD SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	ZINC AND CHROMATE FASTENER
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.845 INCHES MINIMUM
THREAD QUANTITY PER INCH	16
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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