5310-01-485-0820, WASHER,KEY

National Stock Number:
5310-01-485-0820

Federal Supply Class:
5310

National Item Identification Number:
014850820

Description:
WASHER,KEY

Detail:
A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes thrust type washer.

Manufacturer Information:

5520467

53711

NAVAL SEA SYSTEMS COMMAND

Techincal Specification:

DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY	19.8 MILLIMETERS MINIMUM AND 19.9 MILLIMETERS MAXIMUM
HARDNESS RATING	20.0 ROCKWELL C MINIMUM AND 25.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	18.1 MILLIMETERS MINIMUM AND 18.2 MILLIMETERS MAXIMUM
INTERNAL STRAIGHT KEY WIDTH	4.030 MILLIMETERS MINIMUM AND 4.078 MILLIMETERS MAXIMUM
INTERNAL KEY QUANTITY	1
OUTSIDE DIAMETER	40.0 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	AISI1040-1045 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS	2.85 MILLIMETERS MINIMUM AND 3.15 MILLIMETERS MAXIMUM
MATERIAL	STEEL COMP 1040 OR STEEL COMP 1042 OR STEEL COMP 1043 OR STEEL COMP 1044 OR STEEL COMP 1045 OVERALL
STYLE DESIGNATOR	KEY
SURFACE FINISH	1.6 MICROMETERS ALL SURFACES
SURFACE TREATMENT	PHOSPHATE OVERALL

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