The Tee,pipe, cataloged under National Stock Number 4730-01-243-6273, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-243-6273 |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.500 INCHES SECOND END IN |
| Nominal Pipe Size Accommodated | 0.750 INCHES THIRD END IN |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Connection Style | SOCKET (PIPE) ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 558-5589504 ITE | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| M1183/9-408A | 2/2 Government specification standardization U.S. Government activity |
| 558-5589504 ITEM F-40 | 5/1 Secondary reference Naval Sea Systems Command |
| MIL-F-1183/9 | 5/9 Secondary reference U.S. Government activity |
| 9717129 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| MIL-DTL-1183/9 | 4/1 Identification reference U.S. Government activity |
| 2355-547 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 558-5599504 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-243-6273 is a Tee,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-244-0315, 4730-01-261-2505, 4730-01-266-1336. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-243-6273: Nominal Pipe Size Accommodated: 0.500 INCHES SECOND END IN; Nominal Pipe Size Accommodated: 0.750 INCHES THIRD END IN; Nominal Pipe Size Accommodated: 0.500 INCHES FIRST END IN; Connection Style: SOCKET (PIPE) ALL ENDS. 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.