Arrestor, Water Hammer4320-01-520-4311

NSN 4320-01-520-4311 · NIIN 015204311 · Part number Z-1700-300

Zurn Industries Inc Hydromechanics Div · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 79530

Government record, cited

NSN 4320-01-520-4311 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-520-4311. Manufacturer of record part number: Z-1700-300.

Also searched as 4320-01-520-4311 · 4320015204311 · NIIN 015204311 · 01-520-4311 · FSC 4320 Power and Hand Pumps · CAGE 79530 · Z-1700-300

Nearby stock numbers ← 4320-01-520-3184 Pump, Centrifugal · 4320-01-520-4874 Pump, Centrifugal →

Features

Arrestor,water Hammer — FSC 4320
Overall Diameter: 1.000 INCHES NOMINAL IN
Material: STEEL CORROSION RESISTING
1 manufacturer part number on file
Manufacturer of record: Zurn Industries Inc Hydromechanics Div

Identification

NSN: 4320-01-520-4311
NIIN: 015204311
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: Z-1700-300
Manufacturer: Zurn Industries Inc Hydromechanics Div

General Description

The Arrestor,water Hammer, cataloged under National Stock Number 4320-01-520-4311, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Zurn Industries Inc Hydromechanics Div. Government technical data includes 2 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	4320-01-520-4311
Primary Part Number	Z-1700-300
Item Name	Arrestor,water Hammer
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Zurn Industries Inc Hydromechanics Div
Status	ACTIVE
Overall Diameter	1.000 INCHES NOMINAL IN
Material	STEEL CORROSION RESISTING

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
Z-1700-300 PRIMARY	Zurn Industries Inc Hydromechanics Div (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 4320-01-520-4311?

NSN 4320-01-520-4311 is a Arrestor,water Hammer, manufactured by Zurn Industries Inc Hydromechanics Div, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-520-4311?

NSN 4320-01-520-4311 has 1 manufacturer part number on file: Z-1700-300 (Zurn Industries Inc Hydromechanics Div).

What are the specifications of Z-1700-300?

Key specifications for Z-1700-300: Overall Diameter: 1.000 INCHES NOMINAL IN; Overall Length: 4.500 INCHES NOMINAL IN; Overall Width: 3.375 INCHES NOMINAL IN; Special Features: SIZE: 1IN. MALE IPS INLET IS STANDARD; WHERE REQUIRED IN PIPING SYSTEMS, PROPERLY SIZED WATER HAMMER ARRESTOR SHALL BE (SPECIFY SIZE) WITH NESTING TYPE BELLOWS CONTAINED WITHIN A CASING HAVING SUFFICIENT DISPLACEMENT VOLUME TO DISSIPATE THE CALCULATED KINETIC ENERGY GENERATED IN PIPING SYSTEM IN. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-520-4311 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.

PartsTable Design LLC · partstable.com