The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-528-2797, 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 Corporation. Government technical data includes 26 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-528-2797 |
| Primary Part Number | 89237-4E |
| Item Name | Elbow,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) INLET |
| Connection Style | PLAIN (PIPE) SECOND END |
| Inlet Location | LEFT-HAND SIDE SINGLE INLET |
| Connection Type | THREADED INTERNAL PIPE INLET |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.688 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.750 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.656 INCHES NOMINAL INLET IN |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Nominal Thread Size | 0.125 INCHES INLET IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Maximum Operating Temp | 24.4 CELSIUS SINGLE RESPONSE DEGC |
| Surface Treatment | ANODIZE OVERALL |
| Media for Which Designed | GAS SINGLE RESPONSE |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | NPT INLET |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | NPT SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4730-00-528-2797 is a Elbow,pipe to Tube, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-528-2797 has 2 manufacturer part numbers on file: 89237-4E (Northrop Grumman Systems Corporation), 89237-4 (Northrop Grumman Systems Corporation).
Key specifications for 89237-4E: Flow Angle: 90.0 DEGREES; Connection Style: FLARED (TUBE) FIRST END; Connection Style: PLAIN (PIPE) INLET; Connection Style: PLAIN (PIPE) SECOND END. 26 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.