Model: 255687C

Groove Pulley

Properties:

Counterbore Diameter
1.0625 inches
Counterbore Depth
0.719 inches
Groove Depth
0.563 inches
Groove Width
0.5005 inches
Outside Diameter
4.651 inches
Overall Length
3.031 inches
Thread Size
5/16 - 18
Bore Diameter
0.7447 inches
Bore Length
1.750 inches
V Groove Angle In Deg
36.0
Pitch Diameter
Between 3.625 inches and 4.313 inches
Securing Hole Quantity
4
Material And Location
Iron
Face Width
0.750 inches
Design Form
Webbed
Bore Type
Straight
Bearings
Not included
Groove Quantity
1
Counterbore Feature
Included
Counterbore Location
Bb end
Hole Location
Two holes on top and bottom of bore, spaced 1.500 in. On 2.00 in. Diameter bolt circle
Keying Facility
Not included
Securing Method
Threaded hole
Split Hub Feature
Not included
Web/spoke Relationship To Face Centerline
Offset
Lightening Hole
Not included
Integral Cooling Vane
Not included
Groove Shape
V
Bore Feature
Included
Securing Location
Bb end
Hub End Outside Diameter And Location
1.313 inches aa end and 3.000 inches bb end
Distance From Outside Flange/rim To Hub End And Location
1.281 inches aa end and 2.281 inches bb end
Style Designator
Webbed or spoked
NSN
3020-00-990-6548
Part Number
255687C
Description
Pulley,groove
CAGE
1ML14

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 255687C NSN 3020-00-990-6548

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:
--
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

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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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