The Flange,pipe, cataloged under National Stock Number 4730-01-172-6709, 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 Hoffman/new Yorker Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-172-6709 |
| Primary Part Number | 18444-N |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hoffman/new Yorker Inc |
| Status | ACTIVE |
| Flange End Radius | 0.437 INCHES NOMINAL IN |
| Face Seating Surface Condition | GROUND |
| Nominal Pipe Size for Which Designed | 0.375 INCHES IN |
| Flange Section Style | PLAIN FACE, LONG NECK |
| Style Designator | OVAL, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.375 INCHES NOMINAL IN |
| Neck Height | 0.312 INCHES NOMINAL IN |
| Flange Length | 2.875 INCHES NOMINAL IN |
| Nominal Thread Size | 0.375 INCHES IN |
| Bolt Hole Quantity | 2 |
| Bolt Circle Diameter | 2.000 INCHES NOMINAL IN |
| Screw Thread Series Designator | NPT |
| Flange Width | 1.375 INCHES NOMINAL IN |
| Material | IRON |
| Neck Diameter | 1.187 INCHES NOMINAL IN |
| Thickness | 0.437 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 18444-N PRIMARY | Hoffman/new Yorker Inc (USA) |
| Reference | Meaning |
|---|---|
| 18444-N | 5/9 Secondary reference Hoffman/new Yorker, Inc. |
NSN 4730-01-172-6709 is a Flange,pipe, manufactured by Hoffman/new Yorker Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-172-6709 has 1 manufacturer part number on file: 18444-N (Hoffman/new Yorker Inc).
Key specifications for 18444-N: Flange End Radius: 0.437 INCHES NOMINAL IN; Face Seating Surface Condition: GROUND; Nominal Pipe Size for Which Designed: 0.375 INCHES IN; Flange Section Style: PLAIN FACE, LONG NECK. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.