PartsTable TECHNICAL DATA SHEET
NSN 4730-01-706-2250Government record, cited

Union, Tube4730-01-706-2250

NSN 4730-01-706-2250 · NIIN 017062250 · Part number LC639-16AE
Hydraflow · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 24984
Government record, cited
NSN 4730-01-706-2250 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-706-2250. Manufacturer of record part number: LC639-16AE.
Also searched as  4730-01-706-2250 · 4730017062250 · NIIN 017062250 · 01-706-2250 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 24984 · LC639-16AE
Nearby stock numbers  ·
Features
  • Union,tube — FSC 4730
  • Connection Style: GROOVED (TUBE) ALL ENDS BULKHEAD
  • Nominal Overall Length: 1.954 INCHES IN
  • Connection Type: UNTHREADED TUBE W/FORMED END ALL ENDS BULKHEAD
  • Style Designator: PLAIN W/ BULKHEAD THREAD
  • Nominal Outside Diameter Tube Accommodated: 1.0 INCHES ALL ENDS IN
  • Operating Pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Thread Size: 1.375 INCHES CENTER BULKHEAD IN
Identification
  • NSN: 4730-01-706-2250
  • NIIN: 017062250
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: LC639-16AE
  • Manufacturer: Hydraflow
General Description

The Union,tube, cataloged under National Stock Number 4730-01-706-2250, 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 Hydraflow. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-706-2250
Primary Part NumberLC639-16AE
Item NameUnion,tube
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerHydraflow
StatusACTIVE
Connection StyleGROOVED (TUBE) ALL ENDS BULKHEAD
Nominal Overall Length1.954 INCHES IN
Connection TypeUNTHREADED TUBE W/FORMED END ALL ENDS BULKHEAD
Style DesignatorPLAIN W/ BULKHEAD THREAD
Nominal Outside Diameter Tube Accommodated1.0 INCHES ALL ENDS IN
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size1.375 INCHES CENTER BULKHEAD IN
Nominal Outside Diameter1.263 INCHES ALL ENDS IN
Surface TreatmentANODIZE BODY
Thread Quantity Per Inch12 CENTER BULKHEAD
MaterialALUMINUM BODY
Thread Series DesignatorUNF FIRST 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
LC639-16AE PRIMARY Hydraflow (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 4730-01-706-2250?

NSN 4730-01-706-2250 is a Union,tube, manufactured by Hydraflow, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-706-2250?

NSN 4730-01-706-2250 has 1 manufacturer part number on file: LC639-16AE (Hydraflow).

What are the specifications of LC639-16AE?

Key specifications for LC639-16AE: Connection Style: GROOVED (TUBE) ALL ENDS BULKHEAD; Nominal Overall Length: 1.954 INCHES IN; Connection Type: UNTHREADED TUBE W/FORMED END ALL ENDS BULKHEAD; Style Designator: PLAIN W/ BULKHEAD THREAD. 12 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-706-2250 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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