Landing Craft Utility Crosby Group Inc GGG-B-490 Tackle Block 3940-00-926-3727

GGG-B-490 Tackle Block (3940-00-926-3727)

Regular tackle block with three sheaves for fibrous rope, thimble becket, for the Landing Craft Utility.

Part Information

• Design Control Activity: Federal Specifications Promulgated
• Part Number: GGG-B-490
• NSN: 3940-00-926-3727
• End Item: Landing Craft Utility

Specifications

• Block Type: Regular
• Sheave Quantity: 3
• Tackle Accommodated Type: Fibrous Rope
• Becket Type: Thimble
• Becket Quantity: 1
• Shell Length: 8.000 in. nominal
• Sheave Outside Diameter: 4.500 in. nominal
• Center Pin Diameter: 0.625 in. nominal
• Sheave Bearing Lubrication Method: Self-Lubricated
• Maximum Tackle Diameter Accommodated: 1.000 in.
• Surface Treatment and Location: Zinc, Electrolytic, Overall
• Load Rating: 6800.0 lbs. maximum
• Bearing Type: Plain
• Special Features: Sheave thickness at rim min 1.375 in.
• Material - Bearing: Copper Alloy
• Material - Center Pin: Steel
• Material - Sheave: Iron and Steel
• Material - Shell: Iron and Steel