The Reducer,tube, cataloged under National Stock Number 4730-01-283-8184, 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 Seal Plastics Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-283-8184 |
| Primary Part Number | 256P-06X04 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Seal Plastics Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 FERRULE SLEEVE AND 2 KNURLED SHORT COUPLING NUT |
| Connection Style | FLARELESS (TUBE) ALL ENDS |
| Nominal Overall Length | 1.187 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 12.0 DEGREES ALL ENDS |
| Thread Class | 2A ALL ENDS A |
| Material | PLASTIC POLYVINYL CHLORIDE (PVC) BODY |
| Material | COPPER ALLOY NUT |
| Material | PLASTIC POLYVINYL CHLORIDE (PVC) SLEEVE |
| Thread Series Designator | UNF 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 |
|---|---|
| 256-P-06X04 | De Gidts & Feldman B.v. (NLD) |
| 256P-06X04 PRIMARY | Seal Plastics Inc (USA) |
| Reference | Meaning |
|---|---|
| 256-P-06X04 | 5/9 Secondary reference Imperial |
NSN 4730-01-283-8184 is a Reducer,tube, manufactured by Seal Plastics Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-283-8184 has 2 manufacturer part numbers on file: 256-P-06X04 (De Gidts & Feldman B.v.), 256P-06X04 (Seal Plastics Inc).
Key specifications for 256P-06X04: Furnished Items and Quantity: 2 FERRULE SLEEVE AND 2 KNURLED SHORT COUPLING NUT; Connection Style: FLARELESS (TUBE) ALL ENDS; Nominal Overall Length: 1.187 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 16 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.