The Tee,tube, cataloged under National Stock Number 4730-01-666-1863, 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 Sae International Dba Sae International. Government technical data includes 11 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-666-1863 |
| Primary Part Number | SAE J1453-3 6-6-6 520959S |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE THIRD END BULKHEAD |
| Style Designator | TEE |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.6875 INCHES ALL ENDS IN |
| Surface Treatment | PASSIVATE BODY |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Material | STEEL STAINLESS - USE STB000 BODY |
| Thread Series Designator | UN 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 |
|---|---|
| SAE J1453-3 6-6-6 520959S PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE J1453-3 6-6-6 520959S | 5/9 Secondary reference U.S. Government activity |
| SAE J1453 | 5/9 Secondary reference U.S. Government activity |
| SAE J1453 | 5/1 Secondary reference Sae International Dba Sae International |
| SAE-J1453/3 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 6-6-6 520959S | 5/9 Secondary reference Sae International Dba Sae International |
| 6-6-6 520959S | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-01-666-1863 is a Tee,tube, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-666-1863 has 1 manufacturer part number on file: SAE J1453-3 6-6-6 520959S (Sae International Dba Sae International).
Key specifications for SAE J1453-3 6-6-6 520959S: Connection Style: PLAIN (TUBE) ALL ENDS; Connection Type: THREADED EXTERNAL TUBE FIRST END; Connection Type: THREADED EXTERNAL TUBE SECOND END; Connection Type: THREADED EXTERNAL TUBE THIRD END BULKHEAD. 11 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.