The Expansion Joint,pipe, cataloged under National Stock Number 4730-01-110-6579, 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 Evac North America Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-110-6579 |
| Primary Part Number | 2502596-003 |
| Item Name | Expansion Joint,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Nominal Pipe Size Designation | 2.000 INCHES IN |
| Design Type | CORRUGATED ELEMENT |
| Equalization Characteristic | SELF-EQUALIZING |
| End Connection Type | FLANGED |
| Traverse Maximum Length | 0.250 INCHES IN |
| Bolt Hole Diameter | 0.625 INCHES NOMINAL IN |
| Working Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 6.000 INCHES NOMINAL IN |
| Material | IRON CAST FLANGE |
| Joint Type | SINGLE |
| 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 |
|---|---|
| 2502596-003 PRIMARY | Evac North America Inc (USA) |
| R6904-32 | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| Reference | Meaning |
|---|---|
| 2502596-003 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
NSN 4730-01-110-6579 is a Expansion Joint,pipe, manufactured by Evac North America Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-110-6579 has 2 manufacturer part numbers on file: 2502596-003 (Evac North America Inc), R6904-32 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division).
Key specifications for 2502596-003: Nominal Pipe Size Designation: 2.000 INCHES IN; Design Type: CORRUGATED ELEMENT; Equalization Characteristic: SELF-EQUALIZING; End Connection Type: FLANGED. 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.