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NSN 4730-01-234-1773Government record, cited
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Flange, Pipe4730-01-234-1773

NSN 4730-01-234-1773 · NIIN 012341773
FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings
Government record, cited
Also searched as  4730-01-234-1773 · 4730012341773 · NIIN 012341773 · 01-234-1773 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · 45-4558706 ITEM 27 · 845-4558706 · 2642-950-02 ITEM 27
Nearby stock numbers  ·
⌀3.750 INCHES NOMINAL IN HOSE FITTING
4730-01-234-1773 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
  • Flange,pipe — FSC 4730
  • Flange Diameter: 3.750 INCHES NOMINAL IN
  • Tube Outside Diameter for Which Designed: 1.660 INCHES NOMINAL IN
  • Style Designator: ROUND, ONE BOLT HOLE CIRCLE
  • Bolt Hole Diameter: 0.938 INCHES NOMINAL IN
  • Material: COPPER ALLOY
Identification
  • NSN: 4730-01-234-1773
  • NIIN: 012341773
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description

The Flange,pipe, cataloged under National Stock Number 4730-01-234-1773, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-234-1773
Item NameFlange,pipe
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
StatusACTIVE
Flange Diameter3.750 INCHES NOMINAL IN
Tube Outside Diameter for Which Designed1.660 INCHES NOMINAL IN
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Bolt Hole Diameter0.938 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
45-4558706 ITEM 27 3/2 Design control — primary reference
U.S. Government activity
845-4558706 D/9 Drawing number reference only
U.S. Government activity
2642-950-02 ITEM 27 5/2 Secondary reference
U.S. Government activity

Frequently Asked Questions

What is NSN 4730-01-234-1773?

NSN 4730-01-234-1773 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What are the specifications of 4730-01-234-1773?

Key specifications for 4730-01-234-1773: Flange Diameter: 3.750 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 1.660 INCHES NOMINAL IN; Style Designator: ROUND, ONE BOLT HOLE CIRCLE; Bolt Hole Diameter: 0.938 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-234-1773 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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