The Tee,pipe, cataloged under National Stock Number 4730-01-602-8558, 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 Naval Sea Systems Command. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-602-8558 |
| Primary Part Number | 803-6397430,4IN,SGL SWP |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Shape | ROUND ALL ENDS |
| Connection Style | STREAMLINED W/ ONE BRAZING RING (PIPE) ALL ENDS |
| Nominal Length | 3.500 INCHES SECOND END IN |
| Nominal Length | 6.940 INCHES FIRST END IN |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | LONG TURN |
| Operating Pressure | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 425.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | WATER FOURTH RESPONSE |
| Media for Which Designed | OIL SECOND RESPONSE |
| Media for Which Designed | STEAM THIRD RESPONSE |
| Media for Which Designed | AIR FIRST RESPONSE |
| Material | COPPER AND NICKEL OVERALL |
| Nominal Thickness | 0.250 INCHES ALL ENDS 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 |
|---|---|
| 803-6397430,4IN,SGL SWP PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-6397430 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-602-8558 is a Tee,pipe, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-602-8558 has 1 manufacturer part number on file: 803-6397430,4IN,SGL SWP (Naval Sea Systems Command).
Key specifications for 803-6397430,4IN,SGL SWP: Flange Shape: ROUND ALL ENDS; Connection Style: STREAMLINED W/ ONE BRAZING RING (PIPE) ALL ENDS; Nominal Length: 3.500 INCHES SECOND END IN; Nominal Length: 6.940 INCHES FIRST END IN. 14 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.