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Tackle Block

Model / MPN: 3940BL0AL720 | NSN: 3940-00-053-8890
ITAR Registered seal

A mechanical device, consisting of a pulle (s) or sheave(s) encased in a shell or frame which may be provided with a means such as a hook, eye, strap, screw, etc., by which it may be attached to an object. It is used to change direction of a running rope and/or to gain a mechanical advantage.

Product Details
NATO Stock Number
3940-00-053-8890
Sold in multiples of
DEMIL
NO
Bearing Type
Plain
Block Type
Regular
Sheave Quantity
5
Tackle Accommodated Type
Wire rope
Antitoppling Device
Not included
Sheave Outside Diameter
20.000 inches
Center Pin Diameter
2.500 inches
Sheave Bearing Lubrication Method
Self-lubricated
Maximum Tackle Diameter Accommodated
1.125 inches
Tackle Locking Device
Not included
Attachment Style
Oblong link
Material And Location
Bronze bearing
Material And Location
Steel center pin
Material And Location
Steel shell
Material And Location
Bronze sheave
Style Designator
Oval pattern
3940BL Series Parts

Pricing and Availability

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3940BL0AL720 Cross Reference