ASME B18.21.1-1990
Lock washers (Inch series)

Standard No.

ASME B18.21.1-1990

Release Date

1990

Published By

American Society of Mechanical Engineers (ASME)

Status

Withdraw

Replace By

ASME B18.21.1-1994

Latest

ASME B18.21.1-2009(R2016)

ASME B18.21.1-1990 history

• 0000 ASME B18.21.1-2009(R2016)
• 2009 ASME B18.21.1-2009 Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)
• 1999 ASME B18.21.1-1999 Lock washers (Inch series)
• 1994 ASME B18.21.1-1994 Lock washers (Inch series)
• 1990 ASME B18.21.1-1990 Lock washers (Inch series)
• 1972 ASME B18.21.1-1972 Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)

ASME B18.21.1-1990 -All Parts