Piston Assy, Lower4320-01-120-7441

NSN 4320-01-120-7441 · NIIN 011207441 · Part number 4024ATB

Arkema Inc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 61102

Government record, cited

NSN 4320-01-120-7441 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-120-7441. Manufacturer of record part number: 4024ATB.

Also searched as 4320-01-120-7441 · 4320011207441 · NIIN 011207441 · 01-120-7441 · FSC 4320 Power and Hand Pumps · CAGE 61102 · 4024ATB

Nearby stock numbers ← 4320-01-120-7440 Cylinder, Lower · 4320-01-120-7442 Valve Assembly, Foot →

Features

Piston Assy,lower — FSC 4320
1 manufacturer part number on file
Manufacturer of record: Arkema Inc

Identification

NSN: 4320-01-120-7441
NIIN: 011207441
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 4024ATB
Manufacturer: Arkema Inc

General Description

The Piston Assy,lower, cataloged under National Stock Number 4320-01-120-7441, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Arkema Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Piston Assy,lower
FSC / FSG	4320 — Power and Hand Pumps (FSG 43)
Manufacturers	Arkema Inc (CAGE 61102)

Technical Specifications

Parameter	Value
NSN	4320-01-120-7441
Primary Part Number	4024ATB
Item Name	Piston Assy,lower
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Arkema Inc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
4024ATB PRIMARY	Arkema 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 4320-01-120-7441?

NSN 4320-01-120-7441 is a Piston Assy,lower, manufactured by Arkema Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-120-7441?

NSN 4320-01-120-7441 has 1 manufacturer part number on file: 4024ATB (Arkema Inc).

Is NSN 4320-01-120-7441 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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