The Coupling,clamp,pipe, cataloged under National Stock Number 4730-01-256-3734, 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 Victaulic Company of America Inc Dba Victaulic Company of America. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-256-3734 |
| Primary Part Number | L044075PTO |
| Item Name | Coupling,clamp,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Victaulic Company of America Inc Dba Victaulic Company of America |
| Status | ACTIVE |
| Pipe Size Accommodated | 4.500 INCHES NOMINAL IN |
| End Type for Which Designed | GROOVED |
| Working Pressure Rating | 500.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Segment Quantity | 2 |
| Material | IRON CAST HOUSING |
| Material | RUBBER BUTADIENE NITRILE OR RUBBER SYNTHETIC GASKET |
| 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 |
|---|---|
| L044075PTO PRIMARY | Victaulic Company of America Inc Dba Victaulic Company of America (USA) |
| Reference | Meaning |
|---|---|
| 75-4 1/2 | 5/9 Secondary reference Victaulic Company of America Inc Dba Victaulic Company of America |
| C-044-75-P-T0 | 5/9 Secondary reference Victaulic Company of America Inc Dba Victaulic Company of America |
NSN 4730-01-256-3734 is a Coupling,clamp,pipe, manufactured by Victaulic Company of America Inc Dba Victaulic Company of America, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-256-3734 has 1 manufacturer part number on file: L044075PTO (Victaulic Company of America Inc Dba Victaulic Company of America).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-374-9377. Verify interchangeability with system specifications before substitution.
Key specifications for L044075PTO: Pipe Size Accommodated: 4.500 INCHES NOMINAL IN; End Type for Which Designed: GROOVED; Working Pressure Rating: 500.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Special Features: MATERIAL IS DUCTILE IRON. 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.