The Elbow,flange to Tube, cataloged under National Stock Number 4730-00-689-1990, 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 General Electric Company. Government technical data includes 22 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-689-1990 |
| Primary Part Number | R357P16 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Recess Nominal Depth | 0.560 INCHES SECOND END IN |
| Flange Shape | ROUND SECOND END |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | RECESSED STRAIGHT SECOND END |
| Surface Treatment Document and Classification | AMS2470 ASSN STD SINGLE TREATMENT RESPONSE OUTSIDEUNABLE TO DECODE |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Material Document and Classification | AMS 5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES FIRST END IN |
| Leg Length | 1.280 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.120 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Seat Angle | 45.0 DEGREES FIRST END |
| Nominal Outside Diameter | 1.500 INCHES SECOND END IN |
| Surface Treatment | ANODIZE OUTSIDEUNABLE TO DECODE |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | STEEL COMP 321 OVERALL |
| Thread Series Designator | UN FIRST END |
| Nominal Thickness | 0.156 INCHES SECOND END IN |
| Recess Nominal Diameter | 0.844 INCHES SECOND END IN |
| 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 |
|---|---|
| R357P16 PRIMARY | General Electric Company (USA) |
NSN 4730-00-689-1990 is a Elbow,flange to Tube, manufactured by General Electric Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-689-1990 has 1 manufacturer part number on file: R357P16 (General Electric Company).
Key specifications for R357P16: Recess Nominal Depth: 0.560 INCHES SECOND END IN; Flange Shape: ROUND SECOND END; Flow Angle: 90.0 DEGREES; Flange Face Design: RECESSED STRAIGHT SECOND END. 22 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.