The Tee,tube, cataloged under National Stock Number 4730-01-705-8858, 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 Northrop Grumman Systems Corp Integrated Systems Sector. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-705-8858 |
| Primary Part Number | 7NG0023-201610 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corp Integrated Systems Sector |
| Status | ACTIVE |
| Nominal Width Across Flats | 1.625 INCHES CENTER BULKHEAD IN |
| Surface Treatment Document and Classification | AS5272 FED SPEC SINGLE TREATMENT RESPONSE TEE |
| Connection Style | PLAIN (TUBE) THIRD END |
| Connection Type | THREADED INTERNAL TUBE THIRD END |
| Material Document and Classification | AMS4965 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE TEE |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.351 INCHES NOMINAL THIRD END IN |
| Leg Length | 2.698 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.990 INCHES NOMINAL FIRST END IN |
| Reduced Passage Nominal Inside Diameter | 1.000 INCHES SECOND END IN |
| Reduced Passage Nominal Inside Diameter | 1.009 INCHES FIRST END IN |
| Nominal Thread Size | 1.000 INCHES THIRD END IN |
| Nominal Outside Diameter | 1.758 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.758 INCHES SECOND END IN |
| Surface Treatment | LUBRICANT DRY FILM TEE |
| Thread Class | 3A THIRD END A |
| Thread Quantity Per Inch | 18 THIRD END |
| Material | TITANIUM ALLOY TEE |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) THIRD END |
| 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 |
|---|---|
| 7NG0023-201610 PRIMARY | Northrop Grumman Systems Corp Integrated Systems Sector (USA) |
| R51076T201610 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| 7NG0023 | D/9 Drawing number reference only Northrop Grumman Systems Corp Integrated Systems Sector |
NSN 4730-01-705-8858 is a Tee,tube, manufactured by Northrop Grumman Systems Corp Integrated Systems Sector, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-705-8858 has 2 manufacturer part numbers on file: 7NG0023-201610 (Northrop Grumman Systems Corp Integrated Systems Sector), R51076T201610 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-719-4777. Verify interchangeability with system specifications before substitution.
Key specifications for 7NG0023-201610: Nominal Width Across Flats: 1.625 INCHES CENTER BULKHEAD IN; Surface Treatment Document and Classification: AS5272 FED SPEC SINGLE TREATMENT RESPONSE TEE; Connection Style: PLAIN (TUBE) THIRD END; Connection Type: THREADED INTERNAL TUBE THIRD END. 19 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.