Model: 20B81

Brake Drum

Special Features:

Hole 0.500 in.Dia on 3.656 radius tobalance drum. 170.0 to 223.0 brinnell hardness

Properties:

Overall Width
2.406 inches
Mounting Hole Diameter
Between 0.381 inches and 0.388 inches
Mounting Hole Quantity
4
Overall Outside Diameter
8.750 inches
Center Hole Diameter
Between 2.550 inches and 2.552 inches
Mounting Hole Spacing
Equally spaced on 3.122 in. Min, 3.128 in. Max bolt circle
Braking Surface Location
Internal
Braking Surface Diameter
Between 7.995 inches and 8.005 inches
Braking Surface Width
1.969 inches
Cooling Fin
Included
Adjustment Hole
Not included
Inspection Hole
Not included
Oil Drain Hole
Not included
Balancing Pad
Not included
NSN
2530-00-737-1010
Part Number
20B81
Description
Brake Drum
CAGE
95019

A circular shaped metal item designed to be connected to a machine or vehicle shaft or wheel and used to retard, stop or prevent motion by the application of pressure exerted by brake(s) or band(s).

Part 20B81 NSN 2530-00-737-1010

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
11298
FIIG:
T129-E
Concept No.:
App. Key:
EA
Cond. Code:
2
Status:
A

Material Classification

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

Pricing & Availability Check

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Schedule B and Export
  • Schedule B: 8708300050
  • SITC: 78433
  • End Use: Other parts and accessories of vehicles
  • NAICS: 336340
  • USDA: 1

Freight Class: Brakes and servo-brakes and parts, of motor vehicles of headings 8701 to 8705

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