5305-01-362-7255, SETSCREW

National Stock Number:
5305-01-362-7255

Federal Supply Class:
5305

National Item Identification Number:
013627255

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:

FF-S-200	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS51476-14	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

WIDTH ACROSS FLATS	0.156 INCHES NOMINAL
POINT STYLE	CUP
NONDEFINITIVE SPEC/STD DATA	1 TYPE AND
	4 STYLE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FF-S-200
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS51476-14
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.313 INCHES
THREAD QUANTITY PER INCH	18
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	0.240 INCHES MINIMUM AND
	0.260 INCHES MAXIMUM
MATERIAL	STEEL COMP 4032 OR
	STEEL COMP 4037 OR
	STEEL COMP 4137 OR
	STEEL COMP 4140 OR
	STEEL COMP 8630 OR
	STEEL COMP 8640 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	ZINC AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	45.0 ROCKWELL C MINIMUM AND
	53.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	HEADLESS (SETSCREW)
INTERNAL DRIVE STYLE	HEXAGON

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