Restrictor, Fluid Flow4730-01-398-3463

NSN 4730-01-398-3463 · NIIN 013983463 · Part number 78991 ASSY 78991-1

Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 09790

Government record, cited

NSN 4730-01-398-3463 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-398-3463. Manufacturer of record part number: 78991 ASSY 78991-1.

Also searched as 4730-01-398-3463 · 4730013983463 · NIIN 013983463 · 01-398-3463 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 09790 · 78991 ASSY 78991-1 · 78991-1

Nearby stock numbers ← 4730-01-398-3451 Coupling Half, Quick Disconnect · 4730-01-398-3478 Nut, Union →

4730-01-398-3463 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Features

Restrictor,fluid Flow — FSC 4730
2 manufacturer part numbers on file
Manufacturer of record: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator

Identification

NSN: 4730-01-398-3463
NIIN: 013983463
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 78991 ASSY 78991-1
Manufacturer: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator

General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-398-3463, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Restrictor,fluid Flow
FSC / FSG	4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47)
Manufacturers	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (CAGE 09790)

Technical Specifications

Parameter	Value
NSN	4730-01-398-3463
Primary Part Number	78991 ASSY 78991-1
Item Name	Restrictor,fluid Flow
FSC / FSG	4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Manufacturer	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
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
78991 ASSY 78991-1 PRIMARY	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)
78991-1	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)

No interchangeability data on file.

Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

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

4730-00-000-1895

4730-00-000-1895 · Item name not on file

4730-00-000-4289

4730-00-000-4289 · Item name not on file

4730-00-000-4445

4730-00-000-4445 · Item name not on file

4730-00-000-8373

4730-00-000-8373 · Item name not on file

4730-00-000-8897

4730-00-000-8897 · Item name not on file

4730-00-001-0007

4730-00-001-0007 · Item name not on file

4730-00-001-0008

COUPLING,TUBE

4730-00-001-0008

COUPLING,TUBE

Frequently Asked Questions

What is NSN 4730-01-398-3463?

NSN 4730-01-398-3463 is a Restrictor,fluid Flow, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-398-3463?

NSN 4730-01-398-3463 has 2 manufacturer part numbers on file: 78991 ASSY 78991-1 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 78991-1 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator).

Is NSN 4730-01-398-3463 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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