PartsTable TECHNICAL DATA SHEET

NSN 4920-00-511-8409Government record, cited

Coupling4920-00-511-8409

NSN 4920-00-511-8409 · NIIN 005118409 · Part number BT320-297

Hydraulics International, Inc. Dba Hydraulics International Inc · FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 56529

Government record, cited

NSN 4920-00-511-8409 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-511-8409. Manufacturer of record part number: BT320-297.

Also searched as 4920-00-511-8409 · 4920005118409 · NIIN 005118409 · 00-511-8409 · FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 56529 · BT320-297 · 1040 · 1040

Nearby stock numbers ← 4920-00-511-8408 Coupling · 4920-00-511-8410 Coupling →

Features

Coupling — FSC 4920
1 manufacturer part number on file
Manufacturer of record: Hydraulics International, Inc. Dba Hydraulics International Inc

Identification

NSN: 4920-00-511-8409
NIIN: 005118409
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: BT320-297
Manufacturer: Hydraulics International, Inc. Dba Hydraulics International Inc

General Description

The Coupling, cataloged under National Stock Number 4920-00-511-8409, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4920-00-511-8409
Primary Part Number	BT320-297
Item Name	Coupling
FSC / FSG	4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment
Manufacturer	Hydraulics International, Inc. Dba Hydraulics International 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
BT320-297 PRIMARY	Hydraulics International, Inc. Dba Hydraulics International Inc (USA)

Reference documents

Reference	Meaning
1040	5/9 Secondary reference Hydraulics International, Inc. Dba Hydraulics International Inc
1040	5/9 Secondary reference Parker-Hannifin Corporation Div Hydraulic Accumulator Division
BT320-297	5/9 Secondary reference Parker-Hannifin Corporation Div Hydraulic Accumulator Division

No interchangeability data on file.

Other items in FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4920-00-000-0190

TEST SET,FLIGHT CONTROL SYSTEM

4920-00-001-1405

4920-00-001-1405 · Item name not on file

4920-00-001-1716

4920-00-001-1716 · Item name not on file

4920-00-001-1744

4920-00-001-1744 · Item name not on file

4920-00-001-1745

4920-00-001-1745 · Item name not on file

4920-00-001-1746

4920-00-001-1746 · Item name not on file

4920-00-001-1747

4920-00-001-1747 · Item name not on file

4920-00-001-1748

4920-00-001-1748 · Item name not on file

Frequently Asked Questions

What is NSN 4920-00-511-8409?

NSN 4920-00-511-8409 is a Coupling, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.

What part numbers are listed for NSN 4920-00-511-8409?

NSN 4920-00-511-8409 has 1 manufacturer part number on file: BT320-297 (Hydraulics International, Inc. Dba Hydraulics International Inc).

What are the specifications of BT320-297?

Key specifications for BT320-297: End Item Identification: TEST STAND EQUIPMENT,ACFT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4920-00-511-8409 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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