The Thread Piece,union, cataloged under National Stock Number 4730-00-922-5252, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-922-5252 |
| Primary Part Number | 6T513-3 |
| Item Name | Thread Piece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Union End Thread Direction | RIGHT-HAND |
| Nominal Pipe Size Designation | 0.500 INCHES IN |
| End Connection Type | WELDED |
| Union End Thread Size | 1-3/4-12 |
| Seat Type | STRAIGHT FACE |
| Union End Screw Thread Series Designator | UN |
| Material | STEEL COMP 1018 |
| Working Pressure and Service Type | 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS AND 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR LBS |
| 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 |
|---|---|
| 6T513-3 PRIMARY | Hydrasearch Company, Llc (USA) |
| 6TSW-3 | Bracalente Manufacturing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 51T3 | 3/2 Design control — primary reference U.S. Government activity |
| A-10428 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-00-922-5252 is a Thread Piece,union, manufactured by Hydrasearch Company, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-922-5252 has 2 manufacturer part numbers on file: 6T513-3 (Hydrasearch Company, Llc), 6TSW-3 (Bracalente Manufacturing Co Inc).
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-075-0750, 4730-01-300-9219, 4730-01-300-9220. Verify interchangeability with system specifications before substitution.
Key specifications for 6T513-3: Union End Thread Direction: RIGHT-HAND; Nominal Pipe Size Designation: 0.500 INCHES IN; End Connection Type: WELDED; Union End Thread Size: 1-3/4-12. 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.