The Tee,tube, cataloged under National Stock Number 4730-01-321-9825, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Tee,tube |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-321-9825 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| 8451B | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 299997E | 5/9 Secondary reference U.S. Government activity |
| 8451B | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 8451B | 5/9 Secondary reference U.S. Government activity |
| 299997E | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| PL-200138F ITEM 717 | 5/9 Secondary reference U.S. Government activity |
| PL-200138F ITEM 717 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| HB15-4-4-4-5531 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4730-01-321-9825 is a Tee,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5935-01-342-6657. Verify interchangeability with system specifications before substitution.
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.