The Coupling,tube, cataloged under National Stock Number 4730-01-111-4696, 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 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-111-4696 |
| Primary Part Number | 6540561 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) FIRST END |
| Nominal Overall Length | 1.875 INCHES IN |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Style Designator | PLAIN |
| Nominal Outside Diameter Tube Accommodated | 2.000 INCHES FIRST END IN |
| Material | RUBBER OVERALL |
| 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 |
|---|---|
| 6540561 | Evac (FRA) |
| 6540561 PRIMARY | Evac North America Inc (USA) |
| 70103069 | Bae Systems Marine Limited (GBR) |
| Reference | Meaning |
|---|---|
| 5506701 | 5/9 Secondary reference Evac North America Inc |
| 5506701 | 3/9 Design control — primary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 6540561 | 5/1 Secondary reference Transvac Systems |
| 2600748 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 491-5067-01 | C/1 Advisory reference — outside the item-of-supply concept Envirovac Inc Dba Monogram Systems-Rockford Div |
NSN 4730-01-111-4696 is a Coupling,tube, manufactured by Evac North America Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-111-4696 has 3 manufacturer part numbers on file: 6540561 (Evac), 6540561 (Evac North America Inc), 70103069 (Bae Systems Marine Limited).
Key specifications for 6540561: Connection Style: PLAIN (TUBE) FIRST END; Nominal Overall Length: 1.875 INCHES IN; Connection Type: UNTHREADED INTERNAL TUBE FIRST END; Style Designator: PLAIN. 6 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.