The Flange,pipe, cataloged under National Stock Number 4730-00-640-6836, 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 Naval Sea Systems Command. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 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 | 4730-00-640-6836 |
| Primary Part Number | B176 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | CANCELLED |
| Bolt Hole Diameter | 0.562 INCHES NOMINAL IN |
| Tube Outside Diameter for Which Designed | 2.375 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Neck Height | 0.938 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Flange Section Style | PLAIN FACE, SOCKET BRAZING NECK |
| Nondefinitive Spec/std Data | PR TYPE |
| Supplementary Features | BRAZING RING IS NOT TO BE INSERTED IN GROOVE BUT PACKAGED SEPARATELY AND EITHER INCLUDED WITHIN THE PARENT COMPONENT PACKAGE OR 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 |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Circle Diameter | 4.438 INCHES NOMINAL IN |
| Material | COPPER |
| 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 |
| Flange Diameter | 5.562 INCHES NOMINAL IN |
| Thickness | 0.438 INCHES NOMINAL IN |
| Socket Diameter | 2.375 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-PRF-20042 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| B176 PRIMARY | Naval Sea Systems Command (USA) |
| B176 | Naval Ship Systems Command (USA) |
| MILF20042 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| CS4730-0108A030DJ | Derbyshire Machine & Tool Co (USA) |
| CS4730-0108A030DJ PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| CS4730-0108 | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| CS4730-0108A030DJ | Flagg Stanley G & Co Inc Dba Flagg Brass (USA) |
| MILF20042 | Allied Plumbing Sales Co Inc (USA) |
| MILF20042 | Mindeco Corp (USA) |
| CS4730-0108A030DJ | The Walworth Company (USA) |
NSN 4730-00-640-6836 is a Flange,pipe, manufactured by Naval Sea Systems Command, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-640-6836 has 11 cross-referenced part numbers: MIL-PRF-20042 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B176 (Naval Sea Systems Command), B176 (Naval Ship Systems Command), MILF20042 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CS4730-0108A030DJ (Derbyshire Machine & Tool Co) and 6 more.
There are 12 known substitutes for 4730-00-640-6836: 4730-00-104-2011, 4730-00-203-9333, 4730-00-230-8777 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for B176: Bolt Hole Diameter: 0.562 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 2.375 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Neck Height: 0.938 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-640-6836 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.