PartsTable TECHNICAL DATA SHEET

NSN 4320-01-207-9720Government record, cited

Seal Assembly, Shaft, Spring Loade4320-01-207-9720

NSN 4320-01-207-9720 · NIIN 012079720 · Part number 471840

Avtron Aerospace Inc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 01014

Government record, cited

NSN 4320-01-207-9720 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-207-9720. Manufacturer of record part number: 471840.

Also searched as 4320-01-207-9720 · 4320012079720 · NIIN 012079720 · 01-207-9720 · FSC 4320 Power and Hand Pumps · CAGE 01014 · 471840 · A8-2000-110

Nearby stock numbers ← 4320-01-207-9663 Plate, Adapter, Pump · 4320-01-207-9721 Housing, Liquid Pump →

Features

Seal Assembly,shaft,spring Loade — FSC 4320
1 manufacturer part number on file
Manufacturer of record: Avtron Aerospace Inc

Identification

NSN: 4320-01-207-9720
NIIN: 012079720
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 471840
Manufacturer: Avtron Aerospace Inc

General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-207-9720, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Avtron Aerospace Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Seal Assembly,shaft,spring Loade
FSC / FSG	4320 — Power and Hand Pumps (FSG 43)
Manufacturers	Avtron Aerospace Inc (CAGE 01014)

Technical Specifications

Parameter	Value
NSN	4320-01-207-9720
Primary Part Number	471840
Item Name	Seal Assembly,shaft,spring Loade
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Avtron Aerospace 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)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
471840 PRIMARY	Avtron Aerospace Inc (USA)

Reference documents

Reference	Meaning
A8-2000-110	5/9 Secondary reference John Crane, 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 4320-01-207-9720?

NSN 4320-01-207-9720 is a Seal Assembly,shaft,spring Loade, manufactured by Avtron Aerospace Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-207-9720?

NSN 4320-01-207-9720 has 1 manufacturer part number on file: 471840 (Avtron Aerospace Inc).

Is NSN 4320-01-207-9720 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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