Industrial Buna N Square O Ring Kit Duro 70 436 Pieces 36 Sizes Including AS568 006 Through 220 Lathe Square Cut Washer Rings O Rings Heavy Duty Seals For Machinery Repair And Maintenance

Buna-N Square O-Ring Kit with 436 Pieces and 36 Sizes
✔️ 436-piece Buna-N square O-rings kit in 36 sizes, organized case

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This heavy-duty Buna-N (NBR) square cross-section O-ring kit includes 436 pieces across 36 sizes, covering AS568 -006 through -220. Designed for quick repairs and maintenance in hydraulic, pneumatic, and general machinery seals, it helps technicians seal flatly without rolling or twisting. Store in the labeled case for fast size selection on service calls and in the shop.

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✅ 436 total pieces in 36 AS568 sizes (-006 through -220)
✅ Buna-N (NBR) 70 duro for oil and hydraulic fluids
✅ Square cross-section for stable seals; reduces roll/twist
✅ Interchangeable with standard AS568 O-rings in many glands
✅ Temperature range -40°F to 250°F (-40°C to 121°C)
✅ Labeled, organized compartment case for quick size pickup

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💡 What is a square cross-section O-ring used for in mechanical seals?
- Handy for preventing twisting and rolling in seals
- Works in hydraulic, pneumatic, and general machinery applications
- Interoperable with AS568 O-rings in many glands
- Handy for fast field repairs and maintenance tasks

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