Model: 12881C18A

Wearing Ring

Special Features:

Mat'l 70-30 cu ni, mercury free; two slots milled 1/2in.W 180.0deg apart; friction fit

Properties:

Body Style
External flange
Chamfer Length
0.250 inches inside left corner
Overall Length
0.380 inches
Flange Diameter
3.926 inches
Body Outside Diameter
3.650 inches
Body Inside Diameter
3.002 inches
Left Side Flange Thickness
0.186 inches
End Application
Ingersoll rand centrifugal pump 10x20xbsx (asw pump); cover plate
Corner Shape
Chamfered inside right corner
Corner Shape
Chamfered inside left corner
Corner Shape
Chamfered outside right corner
Corner Shape
Square outside left corner
Surface Finish
125.0 microinches all surfaces
Chamfer Angle
35.0 degrees inside right corner
Chamfer Angle
30.0 degrees outside right corner
Chamfer Angle
45.0 degrees inside left corner
Material
Nickel alloy and copper alloy
Material Specification
Astm b171-c715 assn standard all material responses
NSN
4320-01-383-5480
Part Number
12881C18A
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 12881C18A NSN 4320-01-383-5480

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.0000lbs
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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