The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-428-5572, 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 Chicago Fittings. Government technical data includes 18 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 | 4730-00-428-5572 |
| Primary Part Number | R900-20 |
| Item Name | Elbow,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Chicago Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SHORT COUPLING NUT AND 1 SPLIT COLLET SLEEVE |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 1.250 INCHES SECOND END IN |
| Connection Style | GASKET SEAL (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES FIRST END IN |
| Leg Length | 2.188 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.990 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 1.250 INCHES SECOND END IN |
| Nominal Thread Size | 1.750 INCHES FIRST END IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A FIRST END A |
| Thread Quantity Per Inch | 14 FIRST END |
| Material | STEEL OVERALL |
| Thread Series Designator | NPTF SECOND END |
| Thread Series Designator | UNS FIRST 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 |
|---|---|
| R900-20 PRIMARY | Chicago Fittings (USA) |
NSN 4730-00-428-5572 is a Elbow,pipe to Tube, manufactured by Chicago Fittings, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-428-5572 has 1 manufacturer part number on file: R900-20 (Chicago Fittings).
Key specifications for R900-20: Furnished Items and Quantity: 1 SHORT COUPLING NUT AND 1 SPLIT COLLET SLEEVE; Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 1.250 INCHES SECOND END IN; Connection Style: GASKET SEAL (TUBE) FIRST END. 18 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.