Impeller, Pump, Centrifugal4320-01-239-7644

NSN 4320-01-239-7644 · NIIN 012397644 · Part number 190163A

Dresser, Llc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 64104

Government record, cited

NSN 4320-01-239-7644 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-239-7644. Manufacturer of record part number: 190163A.

Also searched as 4320-01-239-7644 · 4320012397644 · NIIN 012397644 · 01-239-7644 · FSC 4320 Power and Hand Pumps · CAGE 64104 · 190163A

Nearby stock numbers ← 4320-01-239-7643 · 4320-01-239-8057 →

Features

Impeller,pump,centrifugal — FSC 4320
Overall Diameter: 3.250 INCHES NOMINAL IN
Material: IRON CAST
Rotation Direction for Which Designed: CLOCKWISE OR COUNTERCLOCKWISE
1 manufacturer part number on file
Manufacturer of record: Dresser, Llc

Identification

NSN: 4320-01-239-7644
NIIN: 012397644
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 190163A
Manufacturer: Dresser, Llc

General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-239-7644, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Dresser, Llc. 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-239-7644
Primary Part Number	190163A
Item Name	Impeller,pump,centrifugal
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Dresser, Llc
Status	ACTIVE
Overall Diameter	3.250 INCHES NOMINAL IN
Material	IRON CAST
Rotation Direction for Which Designed	CLOCKWISE OR COUNTERCLOCKWISE

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
190163A PRIMARY	Dresser, Llc (USA)

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 4320-01-239-7644?

NSN 4320-01-239-7644 is a Impeller,pump,centrifugal, manufactured by Dresser, Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-239-7644?

NSN 4320-01-239-7644 has 1 manufacturer part number on file: 190163A (Dresser, Llc).

What are the specifications of 190163A?

Key specifications for 190163A: Overall Diameter: 3.250 INCHES NOMINAL IN; Material: IRON CAST; Rotation Direction for Which Designed: CLOCKWISE OR COUNTERCLOCKWISE. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-239-7644 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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