BK70

Groove Pulley

NSN 3020-01-272-8678

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
UOM:
NIIN:
012728678

Product Features

Epart no. Bk70 is available in bore sizes 0.5000; 0.625; 0.750: 0.938; 1.000; 1.188; 1.250 and 1.438 with varying keyseat dimensions depending on bore size; bushings are available for odd bore sizes

Technical Specifications of NSN

Groove Width:
0.656 inches
Outside Diameter:
6.750 inches
Overall Length:
1.531 inches
Bore Diameter:
Between 0.500 inches and 1.438 inches
Bore Length:
1.469 inches
Pitch Diameter:
6.000 inches and 6.400 inches
Material And Location:
Iron, cast
Face Width:
0.875 inches
Design Form:
Spoked
Bore Type:
Straight
Bearings:
Not included
Groove Quantity:
1
Counterbore Feature:
Not included
Keying Facility:
Included
Keying Facility Type:
Integral key
Securing Method:
Setscrew
Split Hub Feature:
Not included
Web/spoke Relationship To Face Centerline:
Not offset
Lightening Hole:
Not included
Integral Cooling Vane:
Not included
Groove Shape:
V
Standard V-belt Section Designation For Which Designed:
4l and 5l and a and b
Bore Feature:
Included
Securing Location:
Aa end
Hub End Outside Diameter And Location:
2.375 inches aa end
Distance From Outside Flange/rim To Hub End And Location:
0.656 inches aa end and 0.062 inches bb end
Quantity:
1
Style Designator:
Webbed or spoked
NSN:
3020-01-272-8678
Item Name:
Sheave
Cage Code:
71176

Other Related Parts

No other part numbers with same form, fit, and function found.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
08109
FIIG:
T353-A
Concept No.:
1
App. Key:
AA
Cond. Code:
1
Status:
A

Part Materials

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

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Pricing & Availability

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Privacy | Terms

Definition Definition of approved item name (AIN): "Sheave"

A pulley with one or more grooved faces or rims of the same diameter. For pulleys encased in a shell or frame, see block, tackle. for items specifically designed for aviation, see pulley(1), groove, aviation.

MOE Major Organizational Entities

Entity
DSOR
User:
UNITED KINGDOM United Kingdom
DSOR:
Import / Export
  • Schedule B: 8487900080
  • SITC: 74999
  • End Use: Industrial machines, other
  • NAICS: 333999
  • USDA: 1

Classification: Machinery parts not containing electrical features, and not specified or included elsewhere in chapter 84, except ships' propellers


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