The Flange,pipe, cataloged under National Stock Number 4730-00-640-6837, 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 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-640-6837 |
| Primary Part Number | CS4730-0108A031DJ |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | CANCELLED |
| Neck Height | 0.875 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Flange Section Style | PLAIN FACE, SOCKET BRAZING NECK |
| Tube Outside Diameter for Which Designed | 2.875 INCHES NOMINAL IN |
| Nominal Pipe Size for Which Designed | 2.500 INCHES IN |
| Bolt Hole Diameter | 0.562 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Nondefinitive Spec/std Data | PR TYPE AND PLAIN,150 LB CLASS LBS |
| Supplementary Features | BRAZING RING IS NOT TO BE INSERTED IN GROOVE BUT PACKAGED SEPARATELY AND EITHER INCLUDED WITHIN THE PARENT COMPONENT PACKAGE OF PHYSICALLY ATTACHED TO PARENT COMPONENT |
| Operating Pressure and Type | 150.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Maximum Operating Temp and Media for Which Designed | 425.0 FAHRENHEIT GAS AND 425.0 FAHRENHEIT OIL AND 425.0 FAHRENHEIT STEAM AND 425.0 FAHRENHEIT WATER DEGF |
| Socket Diameter | 2.875 INCHES NOMINAL IN |
| Thickness | 0.500 INCHES NOMINAL IN |
| Bolt Circle Diameter | 5.000 INCHES NOMINAL IN |
| Material | COPPER |
| Precious Material and Weight | 0.154 SILVER OUNCES, TROY |
| Flange Diameter | 6.125 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| CS4730-0108A031DJ | The Walworth Company (USA) |
| CS4730-0108A031DJ | Derbyshire Machine & Tool Co (USA) |
| CS4730-0108A031DJ | Flagg Stanley G & Co Inc Dba Flagg Brass (USA) |
| B176 | Naval Ship Systems Command (USA) |
| MILF20042 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-PRF-20042 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| CS4730-0108A031DJ PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| CS4730-0108A031DJ | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
NSN 4730-00-640-6837 is a Flange,pipe, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-640-6837 has 8 cross-referenced part numbers: CS4730-0108A031DJ (The Walworth Company), CS4730-0108A031DJ (Derbyshire Machine & Tool Co), CS4730-0108A031DJ (Flagg Stanley G & Co Inc Dba Flagg Brass), B176 (Naval Ship Systems Command), MILF20042 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.
There are 10 known substitutes for 4730-00-640-6837: 4730-00-230-8777, 5110-00-561-2531, 4730-00-640-6823 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for CS4730-0108A031DJ: Neck Height: 0.875 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Flange Section Style: PLAIN FACE, SOCKET BRAZING NECK; Tube Outside Diameter for Which Designed: 2.875 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-640-6837 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.