5 Series Stand-Up Block (Requires four #10 RHMS), Aluminum Cheeks, 6.5 oz.
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SCHAEFER5 Series Stand-Up Block (Requires four #10 RHMS), Aluminum Cheeks, 6.5 oz.


In stock online.
Model # 165110 | Mfg # 504-62UPC # 740507011818


5 Series Stand-Up Block (Requires four #10 RHMS), Aluminum Cheeks, 6.5 oz.

Name Value
Ball Bearings Plain Bearings
Becket No Becket
Diameter 7/16 Inch or 11 mm
Direction Any
Integral Cleat No Integral Cleat
Mount Type Mechanical Fasteners
Ratchet Non Ratcheting
Safe Working Load 1750 Pounds
Sheave Diameter 51 mm
Type Single Pivoting
Weight 6.5 Ounces

Product Overview

Schaefer Stand-Up Swivel block allows full rotation and articulation.

Schaefer Stand up spring block ensures smooth operation and high safe working load. Anodized aluminum cheeks and stainless steel mount allows for effortless running.  

Used extensively for sheet blocks on small- to mid-sized keelboats, and as control line blocks for larger offshore boats. Suitable as mast-base or lead blocks on small- to mid-sized boats.  Black anodized aluminum or stainless steel cheeks. Stainless steel straps and posts. 

Key Features 

  • Swivels 45° to each side 
  • Stainless steel mount
  • Patented design prevents block from hitting the deck
  • Universal design suits diverse applications and mounting options
  • Tough, hardcoat-anodized aluminum cheeks 
  • Smooth UV resistant, Delrin™ sheave
  • Accepts Schaefer "universal" adapters for custom mounting
  • High strength to weight ratio


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