
Ronstan
Ronstan Wire Block Tube Rivet Top Removable Nylatron Sheave
- Full name
- RONSTAN WIRE BLOCK TUBE RIVET TOP REMOVABLE NYLATRON SHEAVE
- Mfg part #
- RF103
- UPC
- 9316800067466
- SKU
- 55033
$49.34 $58.05
● In stock — 6 available · NJ · FL
🚚 Free shipping over $100
30-day returns. Details
✓ In stock, ready to ship from our NJ & FL warehouses
Secure checkout · prices verified at checkout
Genuine parts from authorized distributors. Questions? getboatparts@gmail.com
- 30-day returns
About this part
The Ronstan Wire Block Tube Rivet Top Removable Nylatron Sheave is a genuine Ronstan part (manufacturer part # RF103, UPC 9316800067466) in our Blocks range under Sailing. 6 are in stock, shipping from our New Jersey and Florida warehouses. Shipping weight is about 0.2 lb.
Manufacturer description
Wire Block - Tubular Rivet Head w/Removable Nylatron® Sheave - 45mm(1-3/4") Sheave Diameter
Wire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination
Features:
Wire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination
Features:
- Flared cheeks to minimise chafing
- Removable sheaves
Applications:
Wire blocks suit halyards, vang and backstay applications
Materials:- Grade 316 stainless steel cheeks
- Nylatron® sheave
Specifications:
Sheave Ø: 45mm(1-3/4")
Max. Cable Ø: 6mm(1/4")
M.W.L:850kg(1,870lbs)
B.L.: 1,700kg(3,740lbs)
Weight: 88kg(3.1oz) - Grade 316 stainless steel cheeks
Related parts

Ronstan
Ronstan Series 55 RT Orbit Block Single Swivel Head
Part # RF56100
$93.94In stock

Ronstan
Ronstan Series 30 BB Orbit Block Triple
Part # RF35302
$55.40In stock

Harken
Harken 60mm Triple Element Block w/ Swivel
Part # 6272
$177.85In stock

Barton Marine
Barton Marine Size 1 Single Swivel Block w/ Becket
Part # N01130
$22.77In stock