The Union,pipe, cataloged under National Stock Number 4730-01-725-1665, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-725-1665 |
| Primary Part Number | 8-8F6MK4 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Nominal Length | 46.1 MILLIMETERS ALL ENDS MM |
| Nominal Thread Size | 0.5 INCHES ALL ENDS IN |
| Nominal Outside Diameter | 27.0 MILLIMETERS ALL ENDS BULKHEAD MM |
| Material | STEEL OVERALL |
| Thread Series Designator | BSP.TR EXT FIRST END |
| Thread Series Designator | BSP.TR INT SECOND END |
| 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 |
|---|---|
| SUB37000498688 | Rolls-Royce Submarines Limited (GBR) |
| 8-8F6MK4 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 70107812 | Bae Systems Marine Limited (GBR) |
NSN 4730-01-725-1665 is a Union,pipe, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-725-1665 has 3 manufacturer part numbers on file: SUB37000498688 (Rolls-Royce Submarines Limited), 8-8F6MK4 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 70107812 (Bae Systems Marine Limited).
Key specifications for 8-8F6MK4: Nominal Length: 46.1 MILLIMETERS ALL ENDS MM; Nominal Thread Size: 0.5 INCHES ALL ENDS IN; Nominal Outside Diameter: 27.0 MILLIMETERS ALL ENDS BULKHEAD MM; Special Features: 60 DEGREE SWIVEL; 60 DEGREE CONE. 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.