The Elbow,tube, cataloged under National Stock Number 4730-00-328-4802, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-328-4802 |
| Primary Part Number | SS49PC833-4-16Y |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | FLARED (TUBE) ALL ENDSFLARED (TUBE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 0.953 INCHES NOMINAL SECOND END0.953 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.578 INCHES NOMINAL FIRST END1.578 INCHES NOMINAL FIRST END IN |
| Reduced Passage Nominal Inside Diameter | 0.040 INCHES FIRST END IN |
| Nominal Thread Size | 0.437 INCHES ALL ENDS0.437 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Specification/standard Data | 78286-SS49 MANUFACTURERS STANDARD AND 88044-AN833-4 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Thread Class | 3A ALL ENDS3A ALL ENDS A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| 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 |
|---|---|
| SS49 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| SS49PC833-4-16Y PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| SS4015-2S16S | 5/9 Secondary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 4730-00-328-4802 is a Elbow,tube, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-328-4802 has 2 manufacturer part numbers on file: SS49 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), SS49PC833-4-16Y (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for SS49PC833-4-16Y: Flow Angle: 90.0 DEGREES; Connection Style: FLARED (TUBE) ALL ENDSFLARED (TUBE) ALL ENDS; Connection Type: THREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS; Nominal Outside Diameter Tube Accommodated: 0.250 INCHES ALL ENDS IN. 14 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.