Pump Unit, Centrifugal4320-01-366-1404

NSN 4320-01-366-1404 · NIIN 013661404 · Part number 81899

Waterous Company · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 79218

Government record, cited

NSN 4320-01-366-1404 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-366-1404. Manufacturer of record part number: 81899.

Also searched as 4320-01-366-1404 · 4320013661404 · NIIN 013661404 · 01-366-1404 · FSC 4320 Power and Hand Pumps · CAGE 79218 · 81899

Nearby stock numbers ← 4320-01-366-1403 Pump Unit, Centrifugal · 4320-01-366-1995 Pump, Centrifugal →

Features

Pump Unit,centrifugal — FSC 4320
1 manufacturer part number on file
Manufacturer of record: Waterous Company

Identification

NSN: 4320-01-366-1404
NIIN: 013661404
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 81899
Manufacturer: Waterous Company

General Description

The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-366-1404, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Waterous Company. 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	4320-01-366-1404
Primary Part Number	81899
Item Name	Pump Unit,centrifugal
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Waterous Company
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
81899 PRIMARY	Waterous Company (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 4320-01-366-1404?

NSN 4320-01-366-1404 is a Pump Unit,centrifugal, manufactured by Waterous Company, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-366-1404?

NSN 4320-01-366-1404 has 1 manufacturer part number on file: 81899 (Waterous Company).

What are the specifications of 81899?

Key specifications for 81899: Special Features: PACER SPECIAL; THIS PUMP CONSISTSOF BODY ASSY PART NUMBER 81709-5: WHICH INCLUDES,BRONZE VOLUTE BODY AND SUCCTION FITTING,IRON BEARING HOUSING,AND STEEL MOUNTING BRACKET,PART NUMBER72428; IMPELLER SHAFT ASSY PART NUMBER81710-1A: WHICH INCLUDES,17-4 STAINLESS STEEL IMPELLER SHAFT AND IMPELLER WASHER,18-8 STAINLESS STEEL NUT,AND BRONZE IMPELLER AND WEAR RINGS A; End Item Identification: P-19 FIRE TRUCK. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-366-1404 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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