Model: ADD28A

Sprocket Wheel

Properties:

Outside Diameter
4.307 inches
Bolt Circle Diameter
2.125 inches
Bore Diameter
Between 1.2495 inches and 1.2505 inches
Bore Length
0.375 inches
Pitch Diameter
4.307 inches
Securing Hole Quantity
4
Face Width
2.125 inches
Guide
Not included
Design Form
Webbed
Bore Type
Straight
Metallic Hardness Rating And Location
25.0 rockwell c hub
Counterbore Feature
Not included
Hole Location
Located between bore and face of sprocket
Keying Facility
Not included
Securing Method
Drilled hole
Lightening Hole
Not included
Belt/chain/film Size For Which Designed
Silent chain
Teeth Row Quantity
3
Center To Center Distance Between Teeth Rows
0.859 inches
Teeth Quantity Per Row
27
Hardness Rating Test Method
Rockwell
Teeth Hardness Rating
25.0 rockwell c
Bore Bearing
Not included
Hub External Keyway
Not included
Tooth Pitch
0.500 inches
Material
Steel, mil-s-16788, class c2
Material
Steel comp 1020
Material Specification
Mil-s-16788, class c2 military specification single material response
Style Designator
Webbed or spoked
NSN
3020-00-541-1573
Part Number
ADD28A
Description
Sprocket Wheel
CAGE
82796

A toothed wheel whose teeth or sprockets are designed to be engaged with the links of a pitch chain, track, or the like. It is usually used for transmitting power.

Part ADD28A NSN 3020-00-541-1573

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04456
FIIG:
T353-C
Concept No.:
App. Key:
CA
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:
117020
UFC:
59820
LTL:
60.0
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483901000
  • SITC: 74890
  • End Use: Industrial machines, other
  • NAICS: 333613
  • USDA: 1

Freight Class: Chain sprockets and parts thereof

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