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Plug Color Configuration Zinc‑plated silver trivalent clear finish (standard), also available in black zinc, yellow zinc, or plain steel unplated for HYSF XSG series hydraulic plugs
Main parameters
Thread size: 3/4″-16 UNF male straight thread per SAE J514 / ISO 11926‑1
O‑Ring dash number: 2‑213 (AS568‑213), compatible with SAE O‑Ring boss port
Working pressure: up to 5000 psi (345 bar) for hydraulic systems
Temperature range: -40°C to +120°C with NBR O‑Ring; FKM / Viton® optional for high‑temp applications
Sealing type: captive O‑Ring recessed in boss, no thread sealant required
Drive type: external hexagon for standard wrench
Model code: HYSF XSG‑6‑BCL (straight thread hydraulic plug)
Typical applications: hydraulic manifolds, valve blocks, pumps, cylinders, and subsea or industrial fluid power systems
Material parameters
Body material: cold‑forged carbon steel (grade 1215 or 1045) for high strength
Surface treatment: RoHS‑compliant zinc trivalent passivation, 8‑12 μm thickness, provides 72‑96 hours salt spray protection (ASTM B117)
O‑Ring material: NBR 70 Shore A (standard), resistant to mineral oils and hydraulic fluids
Hardness: HRB 75–80 core hardness for reliable thread engagement
Optional materials: stainless steel SS316, SS304, or brass available upon request for corrosion‑resistant applications
Dimension & Thread Specifications
Thread specification: 3/4″-16 UNF‑2A external thread, class 2A tolerance
Overall length (L): 30.5 mm total plug length
Hexagon width across flats (SW): 15.7 mm (approx. 5/8″) – fits standard SAE hex socket or wrench
Shank length under head (or total thread + O‑Ring groove length): 39.7 mm
O‑Ring groove dimensions: AS568‑213 standard – cross section 3.53 mm, inner diameter 23.47 mm
Thread length engagement: full UNF thread for leak‑free high‑pressure seal
Compatibly port size: SAE O‑Ring boss port for 3/4″-16 UNF with mating 2‑213 O‑Ring
Exact replacement for: Parker, Hydac, or Enerpac style SAE plugs; direct cross‑reference to XSG‑6‑BCL
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