The Reducer,pipe, cataloged under National Stock Number 4730-01-271-3722, 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 12 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-271-3722 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 4.000 INCHES FIRST END IN |
| Nominal Pipe Size Accommodated | 1.500 INCHES SECOND END IN |
| Connection Style | GROOVED (PIPE) SECOND END |
| Connection Style | GROOVED (PIPE) FIRST END |
| Nominal Overall Length | 10.870 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL PIPE SECOND END |
| Connection Type | UNTHREADED EXTERNAL PIPE FIRST END |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 40 SECOND END |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 40 FIRST END |
| Media for Which Designed | WATER SINGLE RESPONSE |
| Material | PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL |
| 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 |
|---|---|
| 8524045-103 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 8524045-103 | 3/9 Design control — primary reference U.S. Government activity |
| 8524045 | D/9 Drawing number reference only U.S. Government activity |
| 8524045-103 | 5/9 Secondary reference U.S. Government activity |
| 8524045-103 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-271-3722 is a Reducer,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-271-3723, 4730-01-271-3725, 4730-01-271-3726. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-271-3722: Nominal Pipe Size Accommodated: 4.000 INCHES FIRST END IN; Nominal Pipe Size Accommodated: 1.500 INCHES SECOND END IN; Connection Style: GROOVED (PIPE) SECOND END; Connection Style: GROOVED (PIPE) FIRST END. 12 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.