The Tee,tube to Boss, cataloged under National Stock Number 4730-01-528-6131, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-528-6131 |
| Primary Part Number | 6393738 FIND 009 |
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Connection Style | GASKET SEAL (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES SECOND END IN |
| Operating Pressure | 5500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 2.250 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.250 INCHES NOMINAL FIRST END IN |
| Leg Length | 6.125 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 1.625 INCHES THIRD END IN |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Class | 2A ALL ENDS A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| 6393738 FIND 009 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H815T-20-SS | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-528-6131 is a Tee,tube to Boss, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-528-6131 has 1 manufacturer part number on file: 6393738 FIND 009 (Naval Sea Systems Command).
Key specifications for 6393738 FIND 009: Connection Style: GASKET SEAL (TUBE) FIRST END; Connection Type: THREADED EXTERNAL TUBE FIRST END; Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN; Nominal Outside Diameter Tube Accommodated: 1.250 INCHES SECOND END IN. 13 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.