The Flange,pipe, cataloged under National Stock Number 4730-01-031-8613, 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 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-031-8613 |
| Primary Part Number | 810-1385861TY G 2 1/2INL1 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flange Diameter | 6.125 INCHES NOMINAL IN |
| Maximum Operating Temp and Media for Which Designed | 150.0 FAHRENHEIT WATER, SALT DEGF |
| Tube Outside Diameter for Which Designed | 2.500 INCHES NOMINAL IN |
| Operating Pressure and Type | 700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Flange Section Style | RAISED FACE, WELDING NECK |
| Criticality Code Justification | ZZZY |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.688 INCHES NOMINAL IN |
| Neck Height | 2.000 INCHES NOMINAL IN |
| Material Document and Classification | MIL-C-24679,ALLOY C71500 MIL SPEC SINGLE MATERIAL RESPONSE |
| Groove Depth | 0.108 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN |
| Groove Pitch Diameter | 3.312 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Bolt Circle Diameter | 5.000 INCHES NOMINAL IN |
| Raised Face Diameter | 3.938 INCHES NOMINAL IN |
| Raised Face Height | 0.016 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Groove Width | 0.188 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FORLEVEL 1 ITEMS |
| Thickness | 1.000 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 |
|---|---|
| 810-1385861TY G 2 1/2INL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 810-1385861TY G 2 1/2IN | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4730-01-031-8613 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 4730-01-031-8613 has 1 manufacturer part number on file: 810-1385861TY G 2 1/2INL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 810-1385861TY G 2 1/2INL1: Flange Diameter: 6.125 INCHES NOMINAL IN; Maximum Operating Temp and Media for Which Designed: 150.0 FAHRENHEIT WATER, SALT DEGF; Tube Outside Diameter for Which Designed: 2.500 INCHES NOMINAL IN; Operating Pressure and Type: 700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 20 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.