PartsTable TECHNICAL DATA SHEET

NSN 4320-01-315-4050Government record, cited

Piston, Pump4320-01-315-4050

NSN 4320-01-315-4050 · NIIN 013154050 · Part number 321 06 104

Leybold Usa Inc. · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 0JKC7

Government record, cited

NSN 4320-01-315-4050 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-315-4050. Manufacturer of record part number: 321 06 104.

Also searched as 4320-01-315-4050 · 4320013154050 · NIIN 013154050 · 01-315-4050 · FSC 4320 Power and Hand Pumps · CAGE 0JKC7 · 321 06 104

Nearby stock numbers ← 4320-01-315-3958 · 4320-01-315-4053 Impeller, Pump, Centrifugal →

Features

Piston,pump — FSC 4320
Diameter: 12.0 MILLIMETERS NOMINAL MM
Material: COPPER ALLOY
1 manufacturer part number on file
Manufacturer of record: Leybold Usa Inc.

Identification

NSN: 4320-01-315-4050
NIIN: 013154050
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 321 06 104
Manufacturer: Leybold Usa Inc.

General Description

The Piston,pump, cataloged under National Stock Number 4320-01-315-4050, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Leybold Usa Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4320-01-315-4050
Primary Part Number	321 06 104
Item Name	Piston,pump
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Leybold Usa Inc.
Status	ACTIVE
Diameter	12.0 MILLIMETERS NOMINAL MM
Material	COPPER ALLOY

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
321 06 104 PRIMARY	Leybold Usa Inc. (USA)

Reference documents

Reference	Meaning
321 06 104	3/9 Design control — primary reference Leybold Vacuum Products 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 4320-01-315-4050?

NSN 4320-01-315-4050 is a Piston,pump, manufactured by Leybold Usa Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-315-4050?

NSN 4320-01-315-4050 has 1 manufacturer part number on file: 321 06 104 (Leybold Usa Inc.).

What are the specifications of 321 06 104?

Key specifications for 321 06 104: Overall Height: 30.0 MILLIMETERS NOMINAL MM; Diameter: 12.0 MILLIMETERS NOMINAL MM; End Item Identification: LEYBOLD-HERAEUS VACUUM PUMP MODELS D8A AND D16A; Material: COPPER ALLOY. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-315-4050 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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