The Flange,pipe, cataloged under National Stock Number 4730-01-255-9620, 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 Inventory Control Point Mechanicsburg. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-255-9620 |
| Primary Part Number | CL600SW3/4 SCH80 ANSIB165L1 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Socket Diameter | 1.090 INCHES NOMINAL IN |
| Flange Diameter | 4.625 INCHES NOMINAL IN |
| Face Seating Surface Condition | UNFINISHED |
| Nominal Pipe Size for Which Designed | 0.750 INCHES IN |
| Socket Depth | 0.438 INCHES NOMINAL IN |
| Flange Section Style | RAISED FACE, SOCKET NECK |
| Criticality Code Justification | ZZZY |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.625 INCHES NOMINAL IN |
| Neck Height | 0.375 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.250 INCHES NOMINAL IN |
| Raised Face Diameter | 1.688 INCHES NOMINAL IN |
| Raised Face Height | 0.250 INCHES NOMINAL IN |
| Material | STEEL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Thickness | 0.625 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 | S |
| Part Number | Manufacturer |
|---|---|
| CL600SW3/4 SCH80 ANSIB165L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| CL600SW3/4 SCH80 ANSIB165 | 3/1 Design control — primary reference U.S. Government activity |
| ANSI B16.5L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| ANSI B16.5 | 5/1 Secondary reference U.S. Government activity |
NSN 4730-01-255-9620 is a Flange,pipe, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-255-9620 has 1 manufacturer part number on file: CL600SW3/4 SCH80 ANSIB165L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for CL600SW3/4 SCH80 ANSIB165L1: Socket Diameter: 1.090 INCHES NOMINAL IN; Flange Diameter: 4.625 INCHES NOMINAL IN; Face Seating Surface Condition: UNFINISHED; Nominal Pipe Size for Which Designed: 0.750 INCHES IN. 17 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.