Model: 281-31

Groove Pulley

Properties:

Groove Depth
0.5045 inches
Groove Width
0.500 inches
Outside Diameter
Between 18.245 inches and 18.255 inches
Overall Length
1.563 inches
Keyway Width
0.188 inches
Thread Size
5/16 - 18
Bore Diameter
0.750 inches
Bore Length
1.500 inches
Distance From Center Of Bore To Bottom Of Keyway
0.469 inches
V Groove Angle In Deg
40.0
Pitch Diameter
18.000 inches
Securing Hole Quantity
1
Furnished Items And Quantity
Setscrew, 1
Material And Location
Iron
Face Width
0.875 inches
Design Form
Spoked
Bore Type
Straight
Bearings
Not included
Groove Quantity
1
Counterbore Feature
Not included
Hole Location
Located on top of keyway
Keying Facility
Included
Keying Facility Type
Keyway
Securing Method
Threaded hole
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
4 l
Bore Feature
Included
Securing Location
Aa end
Hub End Outside Diameter And Location
2.375 inches both ends
Distance From Outside Flange/rim To Hub End And Location
0.688 inches aa end and 0.063 inches bb end
Quantity
1
Style Designator
Webbed or spoked
NSN
3020-00-517-1651
Part Number
281-31
Description
Pulley,groove
CAGE
02432

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 281-31 NSN 3020-00-517-1651

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
127320
UFC:
64560
LTL:
70.0
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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