The Reducer,pipe, cataloged under National Stock Number 4730-01-429-9901, 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 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-429-9901 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 1.000 INCHES SECOND END IN |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Connection Style | PLAIN (TUBE) SECOND END |
| Nominal Overall Length | 2.000 INCHES IN |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | UNTHREADED EXTERNAL PIPE SECOND END |
| Nominal Outside Diameter | 1.125 INCHES ALL ENDS IN |
| Material | STEEL COMP 4130 OVERALL |
| Nominal Thickness | 0.375 INCHES ALL ENDS 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 |
|---|---|
| 380278 | D/9 Drawing number reference only U.S. Government activity |
| 380278-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-429-9901 is a Reducer,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-429-9901: Nominal Pipe Size Accommodated: 1.000 INCHES SECOND END IN; Nominal Pipe Size Accommodated: 0.750 INCHES FIRST END IN; Connection Style: PLAIN (TUBE) SECOND END; Nominal Overall Length: 2.000 INCHES IN. 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.