PartsTable TECHNICAL DATA SHEET

NSN 4320-01-528-2818Government record, cited

Impeller, Pump, Centrifugal4320-01-528-2818

NSN 4320-01-528-2818 · NIIN 015282818 · Part number BI8303471-9.5 IN. DIA.

Ampco Pumps Company Llc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 0TWN3

Government record, cited

NSN 4320-01-528-2818 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-528-2818. Manufacturer of record part number: BI8303471-9.5 IN. DIA..

Also searched as 4320-01-528-2818 · 4320015282818 · NIIN 015282818 · 01-528-2818 · FSC 4320 Power and Hand Pumps · CAGE 0TWN3 · BI8303471-9.5 IN. DIA. · BI8303471 · RCH2 3X3X10 DETAIL 3

Nearby stock numbers ← 4320-01-528-2411 Vane, Pump, Rotary · 4320-01-528-2832 Sleeve, Shaft, Pump →

Features

Impeller,pump,centrifugal — FSC 4320
2 manufacturer part numbers on file
Manufacturer of record: Ampco Pumps Company Llc

Identification

NSN: 4320-01-528-2818
NIIN: 015282818
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: BI8303471-9.5 IN. DIA.
Manufacturer: Ampco Pumps Company Llc

General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-528-2818, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Ampco Pumps Company Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-528-2818
Primary Part Number	BI8303471-9.5 IN. DIA.
Item Name	Impeller,pump,centrifugal
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Ampco Pumps Company Llc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
RCH2 3X3X10 DETAIL 3	Ampco Pumps Company Llc (USA)
BI8303471-9.5 IN. DIA. PRIMARY	Ampco Pumps Company Llc (USA)

Reference documents

Reference	Meaning
BI8303471	5/1 Secondary reference Ampco Pumps Company Llc

No interchangeability data on file.

Other items in FSC 4320 — Power and Hand Pumps

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4320-00-001-1633

4320-00-001-1633 · Item name not on file

4320-00-001-2628

RETAINER AND PIN

4320-00-001-2629

HOUSING AND PIN

4320-00-001-2630

PUMP,CENTRIFUGAL

4320-00-001-2631

4320-00-001-2631 · Item name not on file

4320-00-001-2632

4320-00-001-2632 · Item name not on file

4320-00-001-3377

4320-00-001-3377 · Item name not on file

4320-00-001-3384

4320-00-001-3384 · Item name not on file

Frequently Asked Questions

What is NSN 4320-01-528-2818?

NSN 4320-01-528-2818 is a Impeller,pump,centrifugal, manufactured by Ampco Pumps Company Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-528-2818?

NSN 4320-01-528-2818 has 2 manufacturer part numbers on file: RCH2 3X3X10 DETAIL 3 (Ampco Pumps Company Llc), BI8303471-9.5 IN. DIA. (Ampco Pumps Company Llc).

What are the specifications of BI8303471-9.5 IN. DIA.?

Key specifications for BI8303471-9.5 IN. DIA.: Special Features: RCH2 SELF-PRIMING PUMPS ARE CLOSE COUPLED TO JM FRAME MOTORS AND HAVE NPT TREADED CONNECTIONS. MEDIA: SEAWATER. DESCRIPTION: FIRE PUMP NUMBER 6. PUMP SPEED: 3500 RPM. PUMP CAPACITY: 300 GPM. DRIVE TYPE: 50 HP ELECTRIC MOTOR. RPM; Part Name Assigned by Controlling Agency: IMPELLER; End Item Identification: PUMP, RCH2 3X3. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-528-2818 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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