Model: 178998B

Wearing Ring

Properties:

Overall Length
1.875 inches
Body Outside Diameter
Between 6.871 inches and 6.873 inches
Body Inside Diameter
6.220 inches
Corner Radius
0.188 inches inside left corner
Corner Radius
0.188 inches inside right corner
Left Side Flange Thickness
0.312 inches
Right Side Flange Thickness
0.312 inches
Distance Between Flanges
0.505 inches
Internal Flange Inside Diameter
4.250 inches
Internal Flange Width
0.625 inches
Smallest External Anchor Flange Radius
3.437 inches
Largest External Anchor Flange Radius
3.688 inches
Distance Below Centerline
0.062 inches
Corner Shape
Round inside left corner
Corner Shape
Round inside right corner
Corner Shape
Square outside left corner
Corner Shape
Square outside right corner
Surface Finish
125.0 microinches all surfaces
Material
Copper alloy
NSN
4320-00-218-3424
Part Number
178998B
Description
Ring,wearing
CAGE
93232

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 178998B NSN 4320-00-218-3424

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

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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