5310-00-298-9022, NUT,PLAIN,HEXAGON

National Stock Number:
5310-00-298-9022

Federal Supply Class:
5310

National Item Identification Number:
002989022

Description:
NUT,PLAIN,HEXAGON

Detail:
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see LOCKNUT, ELECTRICAL CONDUIT. See also LOCKNUT, TUBE FITTING. For items having a thickness (or height) exceeding two times the width across the flats, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. (When height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Manufacturer Information:

AN150407	81352	AIR FORCE-NAVY AERONAUTICAL SPECIFICATIONS PROMULGATED BY AERONAUTICAL STANDARDS GROUP
FFN836	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

THREAD SERIES	UNF
NOMINAL THREAD SIZE	0.190 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	3B
THREAD DIRECTION	RIGHT-HAND
MATERIAL	STEEL COMP 8735 OR
	STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR
	AMS 6325 FED SPEC 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	19.0 ROCKWELL C MINIMUM AND
	26.0 ROCKWELL C MAXIMUM
NUT STYLE	HEXAGON
NUT HEIGHT	0.115 INCHES MINIMUM AND
	0.135 INCHES MAXIMUM
WIDTH ACROSS FLATS	0.368 INCHES MINIMUM AND
	0.377 INCHES MAXIMUM
BEARING SURFACE TYPE	CHAMFERED OR
	WASHER FACED
COUNTERSINK ANGLE	88.0 DEGREES MINIMUM AND
	92.0 DEGREES MAXIMUM NUT
BEARING SURFACE FINISH	60.0 MICROINCHES
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81352
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	AN150407

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