5305-00-841-0738, SETSCREW

National Stock Number:
5305-00-841-0738

Federal Supply Class:
5305

National Item Identification Number:
008410738

Description:
SETSCREW

Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

Manufacturer Information:

SS5242-2

78286

SIKORSKY AIRCRAFT CORPORATION

Techincal Specification:

FASTENER LENGTH	0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
HARDNESS RATING	43.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM FASTENER
HEAD STYLE	HEADLESS (SETSCREW)
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	STRIP THREADS
MATERIAL	PLASTIC LOCKING FEATURE
MATERIAL	STEEL COMP 440A OR STEEL COMP 303MA FASTENER
NOMINAL THREAD DIAMETER	0.190 INCHES
POINT CHAMFER ANGLE	45.0 DEGREES NOMINAL
POINT DIAMETER	0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
POINT LENGTH	0.137 INCHES MINIMUM AND 0.177 INCHES MAXIMUM
POINT STYLE	CHAMFER DOG
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	CADMIUM AND CHROMATE FASTENER
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	32
WIDTH ACROSS FLATS	0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM

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