The Tee,tube, cataloged under National Stock Number 4730-01-304-7546, 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 29 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-304-7546 |
| Primary Part Number | SS49PA834-4D19W |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 MICRON FILTER AND 2 RESTRICTOR |
| Flow Angle | 90.0 DEGREES |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) FIRST END |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARED (TUBE) THIRD END |
| Connection Type | THREADED EXTERNAL TUBE INLET |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED EXTERNAL BOSS FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES THIRD END IN |
| Leg Length | 0.953 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.953 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.578 INCHES NOMINAL THIRD END IN |
| Reduced Passage Nominal Inside Diameter | 0.028 INCHES FIRST END IN |
| Reduced Passage Nominal Inside Diameter | 0.028 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES THIRD END IN |
| Nominal Thread Size | 0.438 INCHES INLET IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES THIRD END |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A INLET A |
| Thread Class | 3A SECOND END A |
| Thread Class | 3A THIRD END A |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) THIRD END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) INLET |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
| Part Number | Manufacturer |
|---|---|
| SS49PA834-4D19W PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| SS49 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 4730-01-304-7546 is a Tee,tube, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-304-7546 has 1 manufacturer part number on file: SS49PA834-4D19W (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for SS49PA834-4D19W: Furnished Items and Quantity: 2 MICRON FILTER AND 2 RESTRICTOR; Flow Angle: 90.0 DEGREES; Connection Style: FLARED W/ GASKET SEAL (BOSS) FIRST END; Connection Style: FLARED W/ GASKET SEAL (BOSS) SECOND END. 29 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.