Model: 921-254

Groove Pulley

Properties:

Groove Depth
0.938 inches
Groove Width
Between 0.928 inches and 0.948 inches
Outside Diameter
8.975 inches
Overall Length
2.438 inches
Keyway Width
0.250 inches
Bore Diameter
1.000 inches
Bore Length
2.438 inches
Distance From Center Of Bore To Bottom Of Keyway
0.625 inches
V Groove Angle In Deg
38.0
Pitch Diameter
8.600 inches
Material And Location
Iron, cast
Face Width
1.750 inches
Design Form
Webbed
Bore Type
Straight
Bearings
Included
Groove Quantity
2
Counterbore Feature
Not included
Bearing Quantity
1
Keying Facility
Included
Keying Facility Type
Keyway
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
B
Bore Feature
Included
Bearing Type
Flanged
Hub End Outside Diameter And Location
3.875 inches both ends
Distance From Outside Flange/rim To Hub End And Location
0.438 inches aa end and 0.250 inches bb end
Quantity
1
Style Designator
Webbed or spoked
NSN
3020-00-517-1608
Part Number
921-254
Description
Pulley,groove
CAGE
12793

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.

Part 921-254 NSN 3020-00-517-1608

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

Material Classification

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
15.6000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127300
UFC:
64560
LTL:
60.0
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8487900080
  • SITC: 74999
  • End Use: Industrial machines, other
  • NAICS: 333999
  • USDA: 1

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

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