PartsTable TECHNICAL DATA SHEET
NSN 4730-01-668-4750Government record, cited

Adapter, Straight, Pipe to Tube4730-01-668-4750

NSN 4730-01-668-4750 · NIIN 016684750 · Part number PCN 066679
Emerson Electric Co Alco Controls Div · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 70255
Government record, cited
NSN 4730-01-668-4750 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-668-4750. Manufacturer of record part number: PCN 066679.
Also searched as  4730-01-668-4750 · 4730016684750 · NIIN 016684750 · 01-668-4750 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 70255 · PCN 066679 · 066679
Nearby stock numbers  ·
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Nominal Width Across Flats: 0.875 INCHES SECOND END IN
  • Nominal Overall Length: 2.46 INCHES IN
  • Connection Type: THREADED INTERNAL TUBE SECOND END
  • Connection Type: UNTHREADED EXTERNAL PIPE FIRST END
  • Operating Pressure: 700.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Thread Size: 0.75 INCHES SECOND END IN
  • Nominal Outside Diameter: 0.50 INCHES FIRST END IN
Identification
  • NSN: 4730-01-668-4750
  • NIIN: 016684750
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: PCN 066679
  • Manufacturer: Emerson Electric Co Alco Controls Div
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-668-4750, 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 Emerson Electric Co Alco Controls Div. Government technical data includes 10 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
ParameterValue
NSN4730-01-668-4750
Primary Part NumberPCN 066679
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerEmerson Electric Co Alco Controls Div
StatusACTIVE
Nominal Width Across Flats0.875 INCHES SECOND END IN
Nominal Overall Length2.46 INCHES IN
Connection TypeTHREADED INTERNAL TUBE SECOND END
Connection TypeUNTHREADED EXTERNAL PIPE FIRST END
Operating Pressure700.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.75 INCHES SECOND END IN
Nominal Outside Diameter0.50 INCHES FIRST END IN
Thread Class2B SECOND END
Thread Quantity Per Inch20 SECOND END
Thread Series DesignatorUNEF SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
066679 Emerson Electric Co Alco Controls Div (USA)
PCN 066679 PRIMARY Emerson Electric Co Alco Controls Div (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 4730-01-668-4750?

NSN 4730-01-668-4750 is a Adapter,straight,pipe to Tube, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-668-4750?

NSN 4730-01-668-4750 has 2 manufacturer part numbers on file: 066679 (Emerson Electric Co Alco Controls Div), PCN 066679 (Emerson Electric Co Alco Controls Div).

What are the specifications of PCN 066679?

Key specifications for PCN 066679: Nominal Width Across Flats: 0.875 INCHES SECOND END IN; Nominal Overall Length: 2.46 INCHES IN; Connection Type: THREADED INTERNAL TUBE SECOND END; Connection Type: UNTHREADED EXTERNAL PIPE FIRST END. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-668-4750 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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