PartsTable TECHNICAL DATA SHEET

NSN 4320-01-656-6539Government record, cited

Pump Unit, Centrifugal4320-01-656-6539

NSN 4320-01-656-6539 · NIIN 016566539 · Part number 04100343

Flojet Corp · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 0L724

Government record, cited

NSN 4320-01-656-6539 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-656-6539. Manufacturer of record part number: 04100343.

Also searched as 4320-01-656-6539 · 4320016566539 · NIIN 016566539 · 01-656-6539 · FSC 4320 Power and Hand Pumps · CAGE 0L724 · 04100343 · 3974099 · 3974099 · 3974099

Nearby stock numbers ← 4320-01-656-6418 Housing, Liquid Pump · 4320-01-656-6540 Pump, Hydraulic →

Features

Pump Unit,centrifugal — FSC 4320
3 manufacturer part numbers on file
Manufacturer of record: Flojet Corp

Identification

NSN: 4320-01-656-6539
NIIN: 016566539
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 04100343
Manufacturer: Flojet Corp

General Description

The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-656-6539, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Flojet Corp. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Pump Unit,centrifugal
FSC / FSG	4320 — Power and Hand Pumps (FSG 43)
Manufacturers	Jlg Industries (australia) Jlg Australia Pty Limited (CAGE Z1DF2); Flojet Corp (CAGE 0L724); Oshkosh Defense Llc (CAGE 75Q65)

Technical Specifications

Parameter	Value
NSN	4320-01-656-6539
Primary Part Number	04100343
Item Name	Pump Unit,centrifugal
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Flojet Corp
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
3974099	Jlg Industries (australia) Jlg Australia Pty Limited (AUS)
04100343 PRIMARY	Flojet Corp (USA)
3974099	Oshkosh Defense Llc (USA)

Reference documents

Reference	Meaning
3974099	5/9 Secondary reference Jlg Industries (australia) Jlg Industries 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 4320-01-656-6539?

NSN 4320-01-656-6539 is a Pump Unit,centrifugal, manufactured by Flojet Corp, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-656-6539?

NSN 4320-01-656-6539 has 3 manufacturer part numbers on file: 3974099 (Jlg Industries (australia) Jlg Australia Pty Limited), 04100343 (Flojet Corp), 3974099 (Oshkosh Defense Llc).

Is NSN 4320-01-656-6539 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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