Block - Sheet Main Single Plain - Allen - A0278-74

Simple and robust nylon block with sleek style

Block - Sheet Main Single Plain - Allen - A0278-74
Sheave diameter 1 1/2 in / 38 mm1.14 in / 29 mm
Rope/line diameter 8 mm10 mm
Primary method of attachment Clevis/fork removable pinClevis/fork removable pin - BecketClip Inglefield

Features

  • Designed for simple sheeting systems
  • Composite filled nylon cheeks
  • Excellent strength and durability
  • Smoooth profile minimises snagging and gear wear

Product Detail

item
Item type Block
Item type variant Sheet main
identity
Primary identity code for a product or service A0278-74
Product brand Allen
marketing
Manufacturer basic model code 0278-74
material
Primary material simple composition Composite
Primary material composition Nylon-fibreglass
Secondary material simple composition Stainless/SS
Secondary material composition SAE/AISI 316 EN 1.4401 A4 stainless
Sheave material composition Acetal resin
Bearing composition SAE/AISI 316 EN 1.4401 A4 stainless
measurement
Overall length 3.39 in
86 mm
Width of sheave or pulley 0.276 in
7 mm
Rope/line diameter 10 mm
Sheave diameter 1 1/2 in
38 mm
Nett weight 0.045 kg
0.0992 lb
mechanical
Average breaking force 294 daN
300 kg
661 lb
Maximum safe working force 152 daN
155 kg
342 lb
construction
Rope type Polyester
Sheave count Single
Type of bearing Plain
arrangement
Primary method of attachment Clip Inglefield
vessel
Boat using this product Laser 1
Laser 2 Regatta
Boat class Laser
applicable vessel
Types of use Sheet main sportboats
Sheet main dinghy/dinghies
Sheet spin/asym sportboats
Sheet spin/asym dinghy/dinghies
Type of boat Sailing dinhy/dinghies
appearance
Primary colour name Charcoal
Primary colour Grey
Product
Code for alternate product HA.278-74,HA278-74
translation
Item class in Danish Yacht blok
Item class in Dutch Yacht blok
Item class in French Voilier poulie
Item class in German Yacht-Block
Item class in Italian Yacht di blocco
Item class in Norwegian Yacht blokk
Item class in Portuguese bloco Yacht
Item class in Spanish Yacht bloque
Item class in Turkish Yat blok
Item class in Swedish Baten blocket

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