The Reducer,pipe, cataloged under National Stock Number 4730-01-375-8056, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Fernco Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-375-8056 |
| Primary Part Number | 1056-315 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Fernco Inc |
| Status | ACTIVE |
| Connection Style | GROOVED (PIPE) ALL ENDS |
| Nominal Overall Length | 4.000 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL PIPE ALL ENDS |
| Nominal Outside Diameter | 4.000 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.516 INCHES SECOND END IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 1056-315 PRIMARY | Fernco Inc (USA) |
NSN 4730-01-375-8056 is a Reducer,pipe, manufactured by Fernco Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-375-8056 has 1 manufacturer part number on file: 1056-315 (Fernco Inc).
1 possible match (shared part number, not a government interchangeability claim): 5895-01-632-4199. Verify interchangeability with system specifications before substitution.
Key specifications for 1056-315: Connection Style: GROOVED (PIPE) ALL ENDS; Nominal Overall Length: 4.000 INCHES IN; Connection Type: UNTHREADED EXTERNAL PIPE ALL ENDS; Nominal Outside Diameter: 4.000 INCHES FIRST END IN. 7 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.