The Tailpiece,union, cataloged under National Stock Number 4730-01-252-8005, 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 Hydrasearch Company, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-252-8005 |
| Primary Part Number | 6R52-5-BRZ |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Flange Thickness | 0.188 INCHES NOMINAL IN |
| Application/function | W/ PREINSERTED SILVER BRAZING RINGS IN GROOVES; U/O CPV POSITIVE RELIEF VALVES |
| End Connection Type | BRAZED |
| Seat Type | RECESSED FACE |
| Tubing Outside Diameter | 1.312 INCHES NOMINAL IN |
| Material | COPPER ALLOY 464 OR COPPER ALLOY 482 |
| Flange Outside Diameter | 2.188 INCHES NOMINAL IN |
| 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 |
|---|---|
| 6R52-5-BRZ PRIMARY | Hydrasearch Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 2R-5-BRZ | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-252-8005 is a Tailpiece,union, manufactured by Hydrasearch Company, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-252-8005 has 1 manufacturer part number on file: 6R52-5-BRZ (Hydrasearch Company, Llc).
Key specifications for 6R52-5-BRZ: Flange Thickness: 0.188 INCHES NOMINAL IN; Application/function: W/ PREINSERTED SILVER BRAZING RINGS IN GROOVES; U/O CPV POSITIVE RELIEF VALVES; End Connection Type: BRAZED; Overall Length: 1.250 INCHES NOMINAL 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.