The Flange,pipe, cataloged under National Stock Number 4730-01-357-2488, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-357-2488 |
| Primary Part Number | 53X-02-192 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Diameter | 3.500 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| Flange Section Style | PLAIN FACE |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.317 INCHES NOMINAL IN |
| Nominal Thread Size | 2.500 INCHES IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.000 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNF |
| Surface Treatment | PASSIVATE |
| Thread Class | 2B |
| Material | STEEL CORROSION RESISTING |
| Thickness | 0.500 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 |
|---|---|
| 53X-02-192 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 53X-02-192 | 3/9 Design control — primary reference Illinois Tool Wks Inc Linac Div |
NSN 4730-01-357-2488 is a Flange,pipe, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-357-2488 has 1 manufacturer part number on file: 53X-02-192 (Naval Sea Systems Command).
Key specifications for 53X-02-192: Flange Diameter: 3.500 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE; Flange Section Style: PLAIN FACE. 14 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.