PartsTable TECHNICAL DATA SHEET

NSN 4320-01-289-3678Government record, cited

Diffuser, Ejector4320-01-289-3678

NSN 4320-01-289-3678 · NIIN 012893678 · Part number EW-99ES

DC Fabricators Inc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 65427

Government record, cited

NSN 4320-01-289-3678 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-289-3678. Manufacturer of record part number: EW-99ES.

Also searched as 4320-01-289-3678 · 4320012893678 · NIIN 012893678 · 01-289-3678 · FSC 4320 Power and Hand Pumps · CAGE 65427 · EW-99ES

Nearby stock numbers ← 4320-01-289-3673 Ram, Cylinder, Hyraulic Jack · 4320-01-289-3682 Separator, Abrasive →

Features

Diffuser,ejector — FSC 4320
General Characteristics Item Description: STEEL
1 manufacturer part number on file
Manufacturer of record: DC Fabricators Inc

Identification

NSN: 4320-01-289-3678
NIIN: 012893678
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: EW-99ES
Manufacturer: DC Fabricators Inc

General Description

The Diffuser,ejector, cataloged under National Stock Number 4320-01-289-3678, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is DC Fabricators Inc. Government technical data includes 1 specification, 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	4320-01-289-3678
Primary Part Number	EW-99ES
Item Name	Diffuser,ejector
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	DC Fabricators Inc
Status	ACTIVE
General Characteristics Item Description	STEEL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
EW-99ES PRIMARY	DC Fabricators Inc (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 4320-01-289-3678?

NSN 4320-01-289-3678 is a Diffuser,ejector, manufactured by DC Fabricators Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-289-3678?

NSN 4320-01-289-3678 has 1 manufacturer part number on file: EW-99ES (DC Fabricators Inc).

What are the specifications of EW-99ES?

Key specifications for EW-99ES: General Characteristics Item Description: STEEL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4320-01-289-3678 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.

What is the DEMIL code for NSN 4320-01-289-3678?

NSN 4320-01-289-3678 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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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