Model: F21-2D16B1

Wearing Ring

Properties:

Body Style
Plain
Overall Length
Between 0.740 inches and 0.750 inches
Body Outside Diameter
Between 4.377 inches and 4.379 inches
Body Inside Diameter
Between 4.002 inches and 4.004 inches
Corner Shape
Square all corners
Surface Finish
125.0 microinches inside
Surface Finish
125.0 microinches outside
Surface Finish
125.0 microinches left face
Surface Finish
125.0 microinches right face
Material
Copper alloy
Material Specification
Mil-b-16541 military specification single material response
NSN
4320-00-203-9455
Part Number
F21-2D16B1
Description
Ring,wearing
CAGE
82796

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 F21-2D16B1 NSN 4320-00-203-9455

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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