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15 mm x M18x1.5 O-Ring Thread L Series Male Stud – Alabama Industrial Products
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Straight Thread Tube Fitting O-Rings - Precision Associates Inc.
T.D.Williamson - Hot Tap and STOPPLE® Fittings UBSCO - United Business System Co. Ltd.
3/4"-16 Straight Thread O-Ring – Spaulding Marine Store
03 AN straight thread (o-ring) port plug - Clear - Redhorse Performance
Eaton - Industrial Pipe Hex Plug: 1/2″ Male Thread, Male Straight Thread O- Ring - 09724998 - MSC Industrial Supply
Thread o Ring - Fittings (T O R) | PDF | Pipe (Fluid Conveyance) | Building Materials
O-Rings for Straight Thread Tube Fitting Bosses - Seal Design Guide | Apple Rubber Products