The Tee,pipe, cataloged under National Stock Number 4730-01-423-3593, 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 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-423-3593 |
| Primary Part Number | 845-4498593 2INCH NICU TEE |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Connection Style | SOCKET (PIPE) ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Leg Length | 1.500 INCHES NOMINAL ALL ENDS IN |
| Material | NICKEL 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 |
| Part Number | Manufacturer |
|---|---|
| 845-4498593 2INCH NICU TEE PRIMARY | Naval Sea Systems Command (USA) |
| 845-4498593 CL-A QQ-N-281 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 8454498593 SK WLD SCH 80 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 4498593 | D/9 Drawing number reference only Naval Sea Systems Command |
| 845-4498593 2 I | C/1 Advisory reference — outside the item-of-supply concept Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4730-01-423-3593 is a Tee,pipe, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-423-3593 has 3 manufacturer part numbers on file: 845-4498593 2INCH NICU TEE (Naval Sea Systems Command), 845-4498593 CL-A QQ-N-281 (Huntington Ingalls Inc Div Newport News Shipbuilding), 8454498593 SK WLD SCH 80 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 845-4498593 2INCH NICU TEE: Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN; Connection Style: SOCKET (PIPE) ALL ENDS; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Leg Length: 1.500 INCHES NOMINAL ALL ENDS IN. 5 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.