Wearing Ring

NSN: 4320-01-383-5678 | Model: 12889D18B

A cylindrical item with or without flang (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.

NSN Properties and Flags

NATO Stock Number

4320-01-383-5678

DEMIL

Body Style

Internal and external flange

Chamfer Length

0.250 inches inside left corner

Overall Length

0.734 inches

Bolt Circle Diameter

5.875 inches

Flange Diameter

6.937 inches

Body Outside Diameter

6.624 inches

Body Inside Diameter

5.419 inches

Left Side Flange Thickness

0.343 inches

Bolt Hole Quantity

End Application

Ingersoll rand centrifugal pump 10x20xbsx (asw pump)

Internal Flange Inside Diameter

5.190 inches

Internal Flange Width

0.331 inches

Corner Shape

Square inside right corner

Mounting Hole Thread Series Designator

Unc

Mounting Hole Thread Size

0.250 inches

Surface Finish

125.0 microinches outside

Chamfer Angle

45.0 degrees outside left corner

Special Features

70-30 cu-ni mercury free; total of 8 holes on bolt circle: 3 ea 0.218in. Drill 0.375in. C-bore 0.22in. Dp, 1 ea 0.218in. Drill; 1.0in. Slo (flushing) top center, vent slot 40.0deg right and 10.Deg left of bottom center

Material

Nickel alloy and copper alloy

Material Specification

Astm b171 c715 assn standard all material responses

Supplementary Features

Internal flange lip recessed

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 4320-01-383-5678 Datasheet

Supply Class (FSC):

Power And Hand Pumps

Cross Reference:

12889D18B
12889D18
12076F18-498B
12889D18B
12889D18B
12076F18-498B
12889D18

Cage Codes:

Mechanical Wright Electro Curtiss (CAGE 88032)
Mechanical Wright Electro Curtiss (CAGE 0UBG9)

Schedule B & Trade:

Schedule B: 8413919520 (NAICS 333911)

Parts, nesoi, of pumps for liquids
SITC: 74291

Parts of pumps for liquids
End Use: 21100

Industrial engines

Identification:

HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:

NMFC:

128000 - Pumps pwr noi/working heads/parts
WCC:

594 - Pumps and parts, (machinery and parts),(less than 35 feet)
SHC:

9 - Other or no special handling required (sh)
ADC:

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
LTL:

M - 85.0
ACC:

V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
Z
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
9b-----
Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $3,695.93 to $6,159.89..
Does NSN 4320-01-383-5678 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy
What is the NIIN of NSN 4320-01-383-5678?
013835678 or 01-383-5678
Does NSN 4320-01-383-5678 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4320-01-383-5678?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Nov 25, 1993