The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-304-0685, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-304-0685 |
| Item Name | Adapter,straight,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES SECOND END |
| Flange Face Design | RAISED WITH CURVE AND RADIUS SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Nominal Length | 1.798 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 0.799 INCHES SECOND END IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Bolt Hole Nominal Diameter | 0.217 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.745 INCHES FIRST END IN |
| Nominal Thread Size | 0.745 INCHES FIRST END IN |
| Seat Angle | 42.0 DEGREES FIRST END |
| Bolt Hole Quantity | 2 SECOND END |
| Nominal Width | 1.052 INCHES SECOND END IN |
| Thread Class | 2A FIRST END A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF FIRST END |
| Raised Face Nominal Diameter | 0.800 INCHES SECOND END IN |
| Raised Face Nominal Height | 0.401 INCHES SECOND END IN |
| Nominal Thickness | 0.105 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 |
| Reference | Meaning |
|---|---|
| 3002366-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-304-0685 is a Adapter,straight,flange to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-304-0685: Flange Shape: OVAL WITH HOLES SECOND END; Flange Face Design: RAISED WITH CURVE AND RADIUS SECOND END; Connection Style: FLARED (TUBE) FIRST END; Nominal Length: 1.798 INCHES SECOND END IN. 19 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.