The Flange,pipe, cataloged under National Stock Number 4730-00-016-7559, 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 Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-016-7559 |
| Primary Part Number | 2068131TEM23 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Socket Diameter | 10.750 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 10.000 INCHES IN |
| Operating Pressure and Type | 250.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Flange Section Style | PLAIN FACE, SOCKET BRAZING NECK W/O BRAZING RING |
| Neck Height | 1.562 INCHES NOMINAL IN |
| Material Document and Classification | ASTM-B143-1B ASSN STD SINGLE MATERIAL RESPONSE |
| Bolt Hole Quantity | 15 |
| Bore Diameter | 10.325 INCHES NOMINAL IN |
| Material | COPPER ALLOY 903 |
| Thickness | 1.438 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 |
|---|---|
| 206813IM23 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 2068131TEM23 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 206813ITEM23 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 206813 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4730-00-016-7559 is a Flange,pipe, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-016-7559 has 2 manufacturer part numbers on file: 206813IM23 (Huntington Ingalls Inc Div Newport News Shipbuilding), 2068131TEM23 (Huntington Ingalls Inc Div Newport News Shipbuilding).
3 possible matches (shared part number, not a government interchangeability claim): 6680-00-620-9513, 5950-00-683-3083, 2520-01-262-7691. Verify interchangeability with system specifications before substitution.
Key specifications for 2068131TEM23: Socket Diameter: 10.750 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 10.000 INCHES IN; Operating Pressure and Type: 250.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 11 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.