The Flange,pipe, cataloged under National Stock Number 4730-00-256-8588, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-256-8588 |
| Primary Part Number | M4340-DC |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc |
| Status | CANCELLED |
| Bolt Hole Quantity | 6 |
| Nominal Pipe Size for Which Designed | 2.000 INCHES IN |
| Flange Diameter | 5.562 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Material | COPPER ALLOY |
| Nominal Thread Size | 2.000 INCHES IN |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Nondefinitive Spec/std Data | A TYPE AND 1 CLASS |
| Operating Pressure and Type | 100.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Neck Height | 0.438 INCHES NOMINAL IN |
| Screw Thread Series Designator | NPT |
| Bolt Circle Diameter | 4.438 INCHES NOMINAL IN |
| Bolt Hole Diameter | 0.562 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 11-1/2 |
| Thickness | 0.562 INCHES NOMINAL IN |
| Flange Section Style | PLAIN FACE, RAISED NECK |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 25940 | M-D Pneumatics Inc (USA) |
| 13-D-020 | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| M4340-DC PRIMARY | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| MIL-F-20668 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| SK13113 | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| 57-3206-2652ITEM30 | M-D Pneumatics Inc (USA) |
| 57-3206-2652 | M-D Pneumatics Inc (USA) |
NSN 4730-00-256-8588 is a Flange,pipe, manufactured by Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-256-8588 has 7 cross-referenced part numbers: 25940 (M-D Pneumatics Inc), 13-D-020 (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc), M4340-DC (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc), MIL-F-20668 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SK13113 (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc) and 2 more.
There are 12 known substitutes for 4730-00-256-8588: 5999-00-408-8768, 5996-00-563-0374, 3010-01-063-2195 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for M4340-DC: Bolt Hole Quantity: 6; Nominal Pipe Size for Which Designed: 2.000 INCHES IN; Flange Diameter: 5.562 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED. 17 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-256-8588 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.