BOSTITCH Stapler Nailer O-Ring For 21671B-A-E 21680B 21684B-E 216971B-E BT35B-1-E BT50B-1-E

BOSTITCH Stapler Nailer O-Ring For 21671B-A-E 21680B 21684B-E 216971B-E BT35B-1-E BT50B-1-E

Generally, the purpose of O-Rings is to block a pathway that fluid or air may escape through, as it is a sealing device. When squeezing the O-Ring between two surfaces, it takes up the clearance and blocks the pathway that the fluid or air wants to escape through.

However, over time, these O-rings will shrink, become brittle or even crack, allowing for air leaks, therefore hindering performance. Replace your part here.

Please see below for all applicable models