Model: 12253D18 ITEM 6

Wearing Ring

Special Features:

Mercury free titanium casting; mounting holes c-bored; 2 holes 180.0 degrees apart threaded 0.38-16 unc-3b; 2 pry slots 180.0 degrees apart

Properties:

Body Style
Plain w/internal flange
Chamfer Length
0.060 inches outside right corner
Overall Length
2.125 inches
Bolt Circle Diameter
16.125 inches
Body Outside Diameter
17.749 inches
Body Inside Diameter
17.056 inches
Unthreaded Mounting Hole Diameter
0.312 inches
Bolt Hole Quantity
6
Internal Flange Inside Diameter
15.250 inches
Internal Flange Width
0.600 inches
Corner Shape
Chamfered outside right corner
Corner Shape
Square inside right corner
Corner Shape
Square inside left corner
Corner Shape
Square outside left corner
Surface Finish
125.0 microinches all surfaces
Chamfer Angle
30.0 degrees outside right corner
Material
Steel
Material Specification
Astm b367, gr. C-2 assn standard single material response
NSN
4320-01-381-3899
Part Number
12253D18 ITEM 6
Description
Ring,wearing
CAGE
88032

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 12253D18 ITEM 6 NSN 4320-01-381-3899

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:
A
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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