Model: 439B

Tackle Block

Properties:

Bearing Type
Plain
Maximum Load Rating
Not rated
Block Type
Snatch
Locking Style
Drop link
Sheave Quantity
1
Tackle Accommodated Type
Wire rope
Antitoppling Device
Not included
Sheave Outside Diameter
6.000 inches
Center Pin Diameter
0.750 inches
Sheave Bearing Lubrication Method
Self-lubricated
Maximum Tackle Diameter Accommodated
0.500 inches
Tackle Locking Device
Not included
Attachment Style
Oblong swivel eye
Material And Location
Steel center pin
Material And Location
Steel shell
Material And Location
Steel sheave
Material And Location
Bronze bearing
Surface Treatment And Location
Zinc, electrolytic
Style Designator
Oval pattern
NSN
3940-00-368-2891
Part Number
439B
Description
Block,tackle
CAGE
76257

A mechanical device, consisting of a pulley(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.

Part 439B NSN 3940-00-368-2891

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06117
FIIG:
A12900
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127300
UFC:
64560
LTL:
60.0
LCL:
--
WCC:
885
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8425190000
  • SITC: 74421
  • End Use: Materials handling equipment
  • NAICS: 333923
  • USDA: 1

Freight Class: Pulley tackle and hoists, other than skip hoists or hoists of a kind used for raising vehicles, not powered by electric motor

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