Home / Repair Parts / Armstrong Parts / Armstrong Part #961131-271, O-Ring BUNA N Armstrong Part #961131-271, O-Ring BUNA N$19.29 Armstrong Part #961131-271, O-Ring BUNA N quantity Add to cart SKU: 961131-271 Category: Armstrong Parts Description Additional information Description Armstrong Part Number 961131-271, o-ring buna 9-1/4″id x .139cs Additional information Weight 3 lbs