The Reducer,pipe, cataloged under National Stock Number 4730-01-385-9192, 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19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-385-9192 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES CENTER BULKHEAD |
| Flange Face Design | PLAIN CENTER BULKHEAD |
| Surface Treatment Document and Classification | MIL-A-8625 TY II MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Bolt Circle Nominal Diameter | 3.500 INCHES CENTER BULKHEAD IN |
| Nominal Overall Length | 4.000 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Connection Type | FLANGE CENTER BULKHEAD |
| Material Document and Classification | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.285 INCHES CENTER BULKHEAD IN |
| Nominal Thread Size | 1.000 INCHES SECOND END IN |
| Nominal Thread Size | 2.000 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.500 INCHES CENTER BULKHEAD IN |
| Bolt Hole Quantity | 4 CENTER BULKHEAD |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 2017 OVERALL |
| Thread Series Designator | ANPT ALL ENDS |
| Nominal Thickness | 0.310 INCHES CENTER BULKHEAD IN |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| DAA2552D031-003 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-385-9192 is a Reducer,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-385-9192: Flange Shape: ROUND WITH HOLES CENTER BULKHEAD; Flange Face Design: PLAIN CENTER BULKHEAD; Surface Treatment Document and Classification: MIL-A-8625 TY II MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: PLAIN (PIPE) ALL ENDS. 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.