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NSN 4730-01-666-1172Government record, cited

Union, Pipe to Tube4730-01-666-1172

NSN 4730-01-666-1172 · NIIN 016661172 · Part number BRLK-316-18
Omega Engineering, Inc. · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 29907
Government record, cited
NSN 4730-01-666-1172 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-666-1172. Manufacturer of record part number: BRLK-316-18.
Also searched as  4730-01-666-1172 · 4730016661172 · NIIN 016661172 · 01-666-1172 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 29907 · BRLK-316-18
Nearby stock numbers  ·
Features
  • Union,pipe to Tube — FSC 4730
  • Flange Shape: HEXAGON CENTER BULKHEAD
  • Connection Style: SWIVEL NUT, COMPRESSION (TUBE) FIRST END
  • Connection Style: EXTERNAL SECOND END
  • Coupling Flange Shape: HEXAGON
  • Nominal Outside Diameter Tube Accommodated: 0.125 INCHES SECOND END IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Thread Series Designator: NPT SECOND END
Identification
  • NSN: 4730-01-666-1172
  • NIIN: 016661172
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: BRLK-316-18
  • Manufacturer: Omega Engineering, Inc.
General Description

The Union,pipe to Tube, cataloged under National Stock Number 4730-01-666-1172, 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 Omega Engineering, Inc.. Government technical data includes 7 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
NSN4730-01-666-1172
Primary Part NumberBRLK-316-18
Item NameUnion,pipe to Tube
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerOmega Engineering, Inc.
StatusACTIVE
Flange ShapeHEXAGON CENTER BULKHEAD
Connection StyleSWIVEL NUT, COMPRESSION (TUBE) FIRST END
Connection StyleEXTERNAL SECOND END
Coupling Flange ShapeHEXAGON
Nominal Outside Diameter Tube Accommodated0.125 INCHES SECOND END IN
MaterialSTEEL CORROSION RESISTING OVERALL
Thread Series DesignatorNPT 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
BRLK-316-18 PRIMARY Omega Engineering, Inc. (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 4730-01-666-1172?

NSN 4730-01-666-1172 is a Union,pipe to Tube, manufactured by Omega Engineering, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-666-1172?

NSN 4730-01-666-1172 has 1 manufacturer part number on file: BRLK-316-18 (Omega Engineering, Inc.).

What are the specifications of BRLK-316-18?

Key specifications for BRLK-316-18: Flange Shape: HEXAGON CENTER BULKHEAD; Connection Style: SWIVEL NUT, COMPRESSION (TUBE) FIRST END; Connection Style: EXTERNAL SECOND END; Coupling Flange Shape: HEXAGON. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-666-1172 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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