The Swing Joint,pipe, cataloged under National Stock Number 4730-01-418-6477, 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 Hyspan Precision Products, Inc.. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-418-6477 |
| Primary Part Number | BB33033-64-21 |
| Item Name | Swing Joint,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hyspan Precision Products, Inc. |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Bolt Circle Nominal Diameter | 7.500 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | SINGLE JOINT, ELBOW DESIGN |
| Bolt Hole Nominal Diameter | 0.625 INCHES ALL ENDS IN |
| Leg Length | 17.688 INCHES NOMINAL FIRST END IN |
| Leg Length | 7.750 INCHES NOMINAL SECOND END IN |
| Bolt Hole Quantity | 8 ALL ENDS |
| Material | IRON GASKET |
| 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 |
|---|---|
| BB33033-64-21 PRIMARY | Hyspan Precision Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| BB33033-64-21 | 3/9 Design control — primary reference Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc |
NSN 4730-01-418-6477 is a Swing Joint,pipe, manufactured by Hyspan Precision Products, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-418-6477 has 1 manufacturer part number on file: BB33033-64-21 (Hyspan Precision Products, Inc.).
Key specifications for BB33033-64-21: Flange Shape: ROUND WITH HOLES ALL ENDS; Bolt Circle Nominal Diameter: 7.500 INCHES ALL ENDS IN; Connection Type: FLANGE ALL ENDS; Style Designator: SINGLE JOINT, ELBOW DESIGN. 9 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.