PartsTable TECHNICAL DATA SHEET

NSN 4320-01-221-1594Government record, cited

Pump, Centrifugal4320-01-221-1594

NSN 4320-01-221-1594 · NIIN 012211594 · Part number 48-3-0135 SZ3X2.5ZCH2

Ampco Pumps Company Llc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 0TWN3

Government record, cited

NSN 4320-01-221-1594 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-221-1594. Manufacturer of record part number: 48-3-0135 SZ3X2.5ZCH2.

Also searched as 4320-01-221-1594 · 4320012211594 · NIIN 012211594 · 01-221-1594 · FSC 4320 Power and Hand Pumps · CAGE 0TWN3 · 48-3-0135 SZ3X2.5ZCH2 · ABZC2-325-210

Nearby stock numbers ← 4320-01-221-1593 Pump, Centrifugal · 4320-01-221-1595 Pump, Axial Pistons →

Features

Pump,centrifugal — FSC 4320
2 manufacturer part numbers on file
Manufacturer of record: Ampco Pumps Company Llc

Identification

NSN: 4320-01-221-1594
NIIN: 012211594
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 48-3-0135 SZ3X2.5ZCH2
Manufacturer: Ampco Pumps Company Llc

General Description

The Pump,centrifugal, cataloged under National Stock Number 4320-01-221-1594, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Ampco Pumps Company Llc. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Technical Specifications

Parameter	Value
NSN	4320-01-221-1594
Primary Part Number	48-3-0135 SZ3X2.5ZCH2
Item Name	Pump,centrifugal
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Ampco Pumps Company Llc
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
ABZC2-325-210	Ampco Pumps Company Llc (USA)
48-3-0135 SZ3X2.5ZCH2 PRIMARY	Ampco Pumps Company Llc (USA)

Reference documents

Reference	Meaning
48-3-0135 SZ3X2.5ZCH2	3/9 Design control — primary reference Ampco Metal Inc. Dba Ampco Metal 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 4320-01-221-1594?

NSN 4320-01-221-1594 is a Pump,centrifugal, manufactured by Ampco Pumps Company Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-221-1594?

NSN 4320-01-221-1594 has 2 manufacturer part numbers on file: ABZC2-325-210 (Ampco Pumps Company Llc), 48-3-0135 SZ3X2.5ZCH2 (Ampco Pumps Company Llc).

What are the specifications of 48-3-0135 SZ3X2.5ZCH2?

Key specifications for 48-3-0135 SZ3X2.5ZCH2: End Item Identification: PUMP,CENTRIFUGAL,MODEL ZC2 AND ZCH2. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-221-1594 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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