The Elbow,flange to Boss, cataloged under National Stock Number 4730-00-804-5631, 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 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-804-5631 |
| Primary Part Number | 419246 |
| Item Name | Elbow,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES FIRST END |
| Flow Angle | 30.0 DEGREES |
| Flange Face Design | RAISED STRAIGHT FIRST END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Nominal Length | 2.266 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 1.688 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.281 INCHES FIRST END IN |
| Leg Length | 1.125 INCHES MINIMUM AND 1.266 INCHES MAXIMUM FIRST END IN |
| Leg Length | 1.625 INCHES MINIMUM AND 1.719 INCHES MAXIMUM SECOND END IN |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Bolt Hole Quantity | 2 FIRST END |
| Surface Treatment | PASSIVATE THREAD PIECE |
| Surface Treatment | PASSIVATE THREAD PIECEUNABLE TO DECODE |
| Surface Treatment | PASSIVATE TUBE |
| Surface Treatment | PASSIVATE TUBEUNABLE TO DECODE |
| Nominal Width | 1.172 INCHES FIRST END IN |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSEUNABLE TO DECODE |
| Thread Class | 2A SECOND END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF SECOND END |
| Raised Face Nominal Diameter | 0.922 INCHES FIRST END IN |
| Raised Face Nominal Height | 0.750 INCHES FIRST END IN |
| Nominal Thickness | 0.297 INCHES FIRST 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 |
| Part Number | Manufacturer |
|---|---|
| 419246 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 419246 | 5/9 Secondary reference Royal Oak Gage, Inc |
| 419246 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 4730-00-804-5631 is a Elbow,flange to Boss, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-804-5631 has 1 manufacturer part number on file: 419246 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 5935-01-071-5827, 5315-01-260-0186. Verify interchangeability with system specifications before substitution.
Key specifications for 419246: Flange Shape: OVAL WITH HOLES FIRST END; Flow Angle: 30.0 DEGREES; Flange Face Design: RAISED STRAIGHT FIRST END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) 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.