Model: 21089-2228

Plain Encased Seal

Properties:

Attachment Method
Round hole
Accommodated Shaft Diameter
3.125 inches
Attachment Feature Quantity
4
Attachment Hole Diameter
0.125 inches
Seal Width
0.500 inches
Accommodated Shaft Maximum Rated Speed
2000 feet per minute
Case Style
Square
Housing Bore Diameter
4.249 inches
Sealing Element Style
Angular
Maximum Pressure Rating
7.0 pounds per square inch
Material
Rubber synthetic sealing element
Material
Steel case
NSN
5330-00-242-8688
Part Number
21089-2228
Description
Seal,plain Encased
CAGE
73680

A pliable rubber, felt, leather, or composition ring-shaped element, split or solid; with or without spring or spreader, having a metal shell on all or a portion of at least two of the outer surfaces. It may be designed to be either bolt mounted or pressmounted between fixed and moveable parts to form a tight and effective seal by the pressure of the spring or spreader or the resiliency inherent in the element material. Excludes packing with retainer.

Part 21089-2228 NSN 5330-00-242-8688

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04214
FIIG:
A032A0
Concept No.:
App. Key:
BB
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:
P
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8484200000
  • SITC: 74920
  • End Use: Industrial machines, other
  • NAICS: 339991
  • USDA: 1

Freight Class: Mechanical seals

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