The assembly often includes specific socket head screws (124239-001) and square nuts (124372-L02).
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For high pressure rated compressors. 3. 1. 2919X. sheave assembly. 3.1. 1. 2915R. sheave, compressor, 14", 2G, B sect, ccw (N.S.S. engineservicesupply.com Quincy QR-25® Series Model 310