The Elbow,flange to Hose, cataloged under National Stock Number 4730-01-087-5864, 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 Ridge Engineering, Llc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-087-5864 |
| Primary Part Number | 638R660G01 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ridge Engineering, Llc. |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Flow Angle | 90.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | BEADED HOSE SECOND END |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Leg Length | 3.250 INCHES NOMINAL SECOND END IN |
| Leg Length | 4.120 INCHES NOMINAL FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Surface Treatment | PAINT OUTSIDE |
| 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 |
|---|---|
| 638R660G01 PRIMARY | Ridge Engineering, Llc. (USA) |
| Reference | Meaning |
|---|---|
| 638R660 | D/9 Drawing number reference only U.S. Government activity |
| 638R660G01 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-087-5864 is a Elbow,flange to Hose, manufactured by Ridge Engineering, Llc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-087-5864 has 1 manufacturer part number on file: 638R660G01 (Ridge Engineering, Llc.).
Key specifications for 638R660G01: Flange Shape: ROUND WITH HOLES FIRST END; Flow Angle: 90.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: BEADED HOSE SECOND END. 10 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.