The Elbow,duct,air Condition, cataloged under National Stock Number 4730-00-192-1204, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4730-00-192-1204 |
| Primary Part Number | 3-50503-1 |
| Item Name | Elbow,duct,air Condition |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Overall Diameter | 1.500 INCHES NOMINAL IN |
| General Characteristics Item Description | 0.028 IN. WALL THICKNESS, FIRST END REDUCTION FLANGE ATTACHED, SECOND END 8 OZ. SPRING CLIPS ATTACHED, 88 DEG BEND ON 3.000 IN. RADIUS OZ |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 3-50503-1 | American Metal Fabrication Inc (USA) |
| 3-50503-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 3-50503-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 3-50503-1 | 5/9 Secondary reference Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 4730-00-192-1204 is a Elbow,duct,air Condition, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-192-1204 has 2 manufacturer part numbers on file: 3-50503-1 (American Metal Fabrication Inc), 3-50503-1 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-186-8844. Verify interchangeability with system specifications before substitution.
Key specifications for 3-50503-1: Overall Height: 4.700 INCHES NOMINAL IN; Overall Diameter: 1.500 INCHES NOMINAL IN; General Characteristics Item Description: 0.028 IN. WALL THICKNESS, FIRST END REDUCTION FLANGE ATTACHED, SECOND END 8 OZ. SPRING CLIPS ATTACHED, 88 DEG BEND ON 3.000 IN. RADIUS OZ; Overall Length: 5.860 INCHES NOMINAL IN. 3 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.