The Adapter,straight,flange to Pipe, cataloged under National Stock Number 4730-00-396-8220, 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 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-396-8220 |
| Item Name | Adapter,straight,flange to Pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Recess Nominal Depth | 0.073 INCHES SECOND END IN |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Face Design | RECESSED STRAIGHT SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Bolt Circle Nominal Diameter | 1.625 INCHES SECOND END IN |
| Nominal Overall Length | 2.250 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Material Document and Classification | QQ-A-354,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.376 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.500 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Thread Series Designator | ANPT FIRST END |
| Nominal Thickness | 0.250 INCHES SECOND END IN |
| Recess Nominal Diameter | 0.563 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 |
|---|---|
| 2479537 | 3/2 Design control — primary reference U.S. Government activity |
| 2479537 | 5/9 Secondary reference The Boeing Company |
NSN 4730-00-396-8220 is a Adapter,straight,flange to Pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-396-8220: Recess Nominal Depth: 0.073 INCHES SECOND END IN; Flange Shape: ROUND WITH HOLES SECOND END; Flange Face Design: RECESSED STRAIGHT SECOND END; Connection Style: PLAIN (PIPE) FIRST END. 17 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.