Reducer, Tube4730-00-945-2319

NSN 4730-00-945-2319 · NIIN 009452319 · Part number 64A90D112

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 10001

Government record, cited

NSN 4730-00-945-2319 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-945-2319. Manufacturer of record part number: 64A90D112.

Also searched as 4730-00-945-2319 · 4730009452319 · NIIN 009452319 · 00-945-2319 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 10001 · 64A90D112

Nearby stock numbers ← 4730-00-945-2277 Plug, Shoulder · 4730-00-945-2546 Bolt, Fluid Passage →

4730-00-945-2319 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Features

Reducer,tube — FSC 4730
Connection Style: GROOVED INSIDE (TUBE) ALL ENDS
Tubing Wall Nominal Thickness for Which Designed: 0.531 INCHES SECOND END IN
Tubing Wall Nominal Thickness for Which Designed: 0.125 INCHES FIRST END IN
Nominal Overall Length: 5.250 INCHES IN
Connection Type: UNTHREADED EXTERNAL TUBE FIRST END
Connection Type: UNTHREADED EXTERNAL TUBE SECOND END
Nominal Outside Diameter Tube Accommodated: 4.500 INCHES SECOND END IN

Identification

NSN: 4730-00-945-2319
NIIN: 009452319
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 64A90D112
Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier

General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-945-2319, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4730-00-945-2319
Primary Part Number	64A90D112
Item Name	Reducer,tube
FSC / FSG	4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Manufacturer	Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Status	ACTIVE
Connection Style	GROOVED INSIDE (TUBE) ALL ENDS
Tubing Wall Nominal Thickness for Which Designed	0.531 INCHES SECOND END IN
Tubing Wall Nominal Thickness for Which Designed	0.125 INCHES FIRST END IN
Nominal Overall Length	5.250 INCHES IN
Connection Type	UNTHREADED EXTERNAL TUBE FIRST END
Connection Type	UNTHREADED EXTERNAL TUBE SECOND END
Nominal Outside Diameter Tube Accommodated	4.500 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated	6.250 INCHES FIRST END IN
Surface Treatment	ANODIZE INSIDE
Surface Treatment	ANODIZE OUTSIDE
Material	ALUMINUM ALLOY OVERALL
Reducer Type	ECCENTRIC

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
64A90D112	Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
64A90D112 PRIMARY	Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (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 4730-00-945-2319?

NSN 4730-00-945-2319 is a Reducer,tube, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-00-945-2319?

NSN 4730-00-945-2319 has 2 manufacturer part numbers on file: 64A90D112 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 64A90D112 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What are the specifications of 64A90D112?

Key specifications for 64A90D112: Connection Style: GROOVED INSIDE (TUBE) ALL ENDS; Tubing Wall Nominal Thickness for Which Designed: 0.531 INCHES SECOND END IN; Tubing Wall Nominal Thickness for Which Designed: 0.125 INCHES FIRST END IN; Nominal Overall Length: 5.250 INCHES IN. 12 specifications are documented in the U.S. Government catalog.

Is NSN 4730-00-945-2319 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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