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Industrial Parts Catalog
Datasheet generated 2026-10-07
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SKF size19-120-395A O-ring / back-up ring

SKF · Seals & Gaskets · O-Rings & Back-up Rings · Sweden · skf.com
Part Number
STR19-120-395A  ·  HS 4016.93
SKF size19-120-395A O-ring / back-up ring

SKF size19-120-395A o-ring / back-up ring. SKF O-ring in nitrile (NBR), hydrogenated nitrile (HNBR), fluoroelastomer (FKM / Viton), ethylene-propylene (EPDM) or silicone (VMQ). Dimensioned to AS 568A imperial, ISO 3601 metric, or JIS B 2401. Companion PTFE / thermoplastic back-up rings extend service pressure to 700 bar in dynamic hydraulic applications by preventing extrusion into the sealing gap.

Technical Specifications

TypeO-ring / back-up ring Designation: SKF size19-120-395A HS code: 4016.93 O-ring inside diameter: 25.07 mm O-ring cross section: 2.62 mm Width: 1.3 mm Dash-number: 120 material: Polyurethane (PU) Unit system: Inch Product net weight: 0.0002 kg eClass code: 23-07-01-90 UNSPSC code: 31181602

Properties

MaterialAs declared by SKF designation suffix
Temperature rangePer SKF product data
Primary standardSKF designation convention (see description for governing ISO / DIN)
MOQ1

Compatibility

Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.

Cross-References

Attached Documents