Model: 55-22420-18US

Wearing Ring

Properties:

Overall Length
1.000 inches
Body Outside Diameter
Between 5.496 inches and 5.498 inches
Body Inside Diameter
Between 4.860 inches and 4.862 inches
Corner Radius
0.438 inches inside right corner
Left Side Flange Thickness
0.188 inches
Right Side Flange Thickness
0.188 inches
Distance Between Flanges
0.625 inches
Internal Flange Inside Diameter
3.875 inches
Largest External Anchor Flange Radius
2.938 inches
Distance Below Centerline
0.062 inches
Corner Shape
Round inside right corner
Corner Shape
Square inside left corner
Corner Shape
Square outside left corner
Corner Shape
Square outside right corner
Surface Finish
125.0 microinches all surfaces
Material
Copper alloy
NSN
4320-00-761-7599
Part Number
55-22420-18US
Description
Ring,wearing
CAGE
52081

A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.

Part 55-22420-18US NSN 4320-00-761-7599

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22534
FIIG:
A19900
Concept No.:
App. Key:
A
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:
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:
0.2000lbs
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:
128000
UFC:
64870
LTL:
85.0
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8413919520
  • SITC: 74291
  • End Use: Industrial engines
  • NAICS: 333911
  • USDA: 1

Freight Class: Parts, nesoi, of pumps for liquids

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