The Reducer,pipe, cataloged under National Stock Number 4730-01-185-4176, 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 Nibco Inc Chemtrol Div. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-185-4176 |
| Primary Part Number | 5101-3-3-R-2X1 1/2 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Nibco Inc Chemtrol Div |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 3.406 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Nominal Thread Size | 2.000 INCHES FIRST END IN |
| Nominal Thread Size | 1.500 INCHES SECOND END IN |
| Material | PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| 5101-3-3-R-2X1 1/2 PRIMARY | Nibco Inc Chemtrol Div (USA) |
| Reference | Meaning |
|---|---|
| 05026053 | 5/9 Secondary reference Nibco Inc Chemtrol Div |
| 05026053 | 5/9 Secondary reference Nibco Inc |
NSN 4730-01-185-4176 is a Reducer,pipe, manufactured by Nibco Inc Chemtrol Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-185-4176 has 1 manufacturer part number on file: 5101-3-3-R-2X1 1/2 (Nibco Inc Chemtrol Div).
Key specifications for 5101-3-3-R-2X1 1/2: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 3.406 INCHES IN; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Nominal Thread Size: 2.000 INCHES FIRST END IN. 8 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.