The Reducer,tube, cataloged under National Stock Number 4730-00-142-1198, 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 Naval Sea Systems Command. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-142-1198 |
| Primary Part Number | 810-1385951PC2AND4 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Connection Style | SOCKET BRAZING RING (TUBE) FIRST END |
| Connection Style | PLAIN (TUBE) SECOND END |
| Nominal Overall Length | 2.375 INCHES IN |
| Nominal Outside Diameter Tube Accommodated | 1.660 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.050 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE OD TUBE ON FIRST AND SECOND END AND PREINSERTED RING |
| 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 |
|---|---|
| 810-1385951PC2AND4 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5000S4823-841338REV5PC7-9 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-00-142-1198 is a Reducer,tube, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-142-1198 has 1 manufacturer part number on file: 810-1385951PC2AND4 (Naval Sea Systems Command).
7 possible matches (shared part number, not a government interchangeability claim): 4730-00-142-1201, 4730-00-142-1202, 4730-00-142-1203. Verify interchangeability with system specifications before substitution.
Key specifications for 810-1385951PC2AND4: Connection Style: SOCKET BRAZING RING (TUBE) FIRST END; Connection Style: PLAIN (TUBE) SECOND END; Nominal Overall Length: 2.375 INCHES IN; Nominal Outside Diameter Tube Accommodated: 1.660 INCHES SECOND END 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.