5305-01-272-0684, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-272-0684

Federal Supply Class:
5305

National Item Identification Number:
012720684

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:

SS5013-08LP04

78286

SIKORSKY AIRCRAFT CORPORATION

Techincal Specification:

EXTENDED WASHER THICKNESS	0.023 INCHES NOMINAL
EXTENDED WASHER DIAMETER	0.375 INCHES NOMINAL
FASTENER LENGTH	0.410 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
HARDNESS RATING	26.0 ROCKWELL C MINIMUM FASTENER AND 32.0 ROCKWELL C MAXIMUM FASTENER
HEAD DIAMETER	0.312 INCHES NOMINAL
HEAD HEIGHT	0.082 INCHES MINIMUM AND 0.092 INCHES MAXIMUM
HEAD STYLE	ROUND EXTENDED WASHER
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
LOCKING FEATURE	STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6300 ASSN STD 1ST MATERIAL RESPONSE FASTENER OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE FASTENER
MATERIAL	PLASTIC LOCKING FEATURE
MATERIAL	STEEL COMP 4037 FASTENER OR STEEL COMP 8630 FASTENER
PROPRIETARY CHARACTERISTICS	PACS
MINIMUM TENSILE STRENGTH	125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.164 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	CADMIUM FASTENER AND CHROMATE FASTENER
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.378 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNJC

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