PartsTable TECHNICAL DATA SHEET

NSN 4320-01-356-4722Government record, cited

Impeller, Pump, Centrifugal4320-01-356-4722

NSN 4320-01-356-4722 · NIIN 013564722 · Part number 43421-04

Itt Marlow a Unit of Itt Pumps and Compressors Div · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 38455

Government record, cited

NSN 4320-01-356-4722 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-356-4722. Manufacturer of record part number: 43421-04.

Also searched as 4320-01-356-4722 · 4320013564722 · NIIN 013564722 · 01-356-4722 · FSC 4320 Power and Hand Pumps · CAGE 38455 · 43421-04 · 4342104

Nearby stock numbers ← 4320-01-356-4592 · 4320-01-356-4723 Impeller, Pump, Centrifugal →

Features

Impeller,pump,centrifugal — FSC 4320
Overall Diameter: 8.000 INCHES NOMINAL IN
Material: COPPER ALLOY
Rotation Direction for Which Designed: CLOCKWISE
1 manufacturer part number on file
Manufacturer of record: Itt Marlow a Unit of Itt Pumps and Compressors Div

Identification

NSN: 4320-01-356-4722
NIIN: 013564722
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 43421-04
Manufacturer: Itt Marlow a Unit of Itt Pumps and Compressors Div

General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-356-4722, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Itt Marlow a Unit of Itt Pumps and Compressors Div. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4320-01-356-4722
Primary Part Number	43421-04
Item Name	Impeller,pump,centrifugal
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Itt Marlow a Unit of Itt Pumps and Compressors Div
Status	ACTIVE
Overall Diameter	8.000 INCHES NOMINAL IN
Material	COPPER ALLOY
Rotation Direction for Which Designed	CLOCKWISE

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
43421-04 PRIMARY	Itt Marlow a Unit of Itt Pumps and Compressors Div (USA)

Reference documents

Reference	Meaning
4342104	5/9 Secondary reference Power Pump Inc

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 4320-01-356-4722?

NSN 4320-01-356-4722 is a Impeller,pump,centrifugal, manufactured by Itt Marlow a Unit of Itt Pumps and Compressors Div, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-356-4722?

NSN 4320-01-356-4722 has 1 manufacturer part number on file: 43421-04 (Itt Marlow a Unit of Itt Pumps and Compressors Div).

What are the specifications of 43421-04?

Key specifications for 43421-04: Overall Diameter: 8.000 INCHES NOMINAL IN; Special Features: TAPERED BORE; End Item Identification: 4320-01-325-6373 CENTRIFUGAL PUMP; Material: COPPER ALLOY. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-356-4722 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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