The Tee,flange to Tube, cataloged under National Stock Number 4730-01-250-6830, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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. 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 | 4730-01-250-6830 |
| Primary Part Number | 394717 |
| Item Name | Tee,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES THIRD END |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | RAISED STRAIGHT THIRD END |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Nominal Length | 2.320 INCHES THIRD END IN |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | FLANGE THIRD END |
| Thread Pitch Diameters | +0.6703 TO 0.7470 INCHES SECOND END IN |
| Material Document and Classification | AMS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.281 INCHES THIRD END IN |
| Leg Length | 1.500 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.920 INCHES NOMINAL FIRST END IN |
| Leg Length | 2.520 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.060 INCHES THIRD END IN |
| Bolt Hole Quantity | 4 THIRD END |
| Nominal Width | 1.680 INCHES THIRD END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.700 INCHES THIRD END IN |
| Thread Quantity Per Inch | 16 SECOND END |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNS SECOND END |
| Raised Face Nominal Diameter | 1.308 INCHES THIRD END IN |
| Raised Face Nominal Height | 0.320 INCHES THIRD END IN |
| Nominal Thickness | 0.160 INCHES THIRD END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
NSN 4730-01-250-6830 is a Tee,flange to Tube, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-250-6830 has 2 manufacturer part numbers on file: 394717 (Rtx Corporation Div Pratt & Whitney), 394717 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-339-5469. Verify interchangeability with system specifications before substitution.
Key specifications for 394717: Flange Shape: RECTANGULAR WITH HOLES THIRD END; Flow Angle: 90.0 DEGREES; Flange Face Design: RAISED STRAIGHT THIRD END; Connection Style: FLARED (TUBE) 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.