5305-01-414-5002, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-414-5002

Federal Supply Class:
5305

National Item Identification Number:
014145002

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:

211038341	53711	NAVAL SEA SYSTEMS COMMAND
211095647	53711	NAVAL SEA SYSTEMS COMMAND
512-6405698-24	53711	NAVAL SEA SYSTEMS COMMAND

Techincal Specification:

COUNTERSINK ANGLE	80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
FASTENER LENGTH	0.525 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
HEAD DIAMETER	0.480 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PATCH THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-F-18240 MFR REF 15TH MATERIAL RESPONSE LOCKING FEATURE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE FASTENER
MATERIAL	NICKEL ALLOY 400 FASTENER
MATERIAL	PLASTIC POLYAMIDE NYLON LOCKING FEATURE
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	40000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.525 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNRC
WIDTH ACROSS FLATS	0.156 INCHES NOMINAL

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