The Flange,pipe,blind, cataloged under National Stock Number 4730-00-230-8777, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-230-8777 |
| Primary Part Number | MIL-PRF-20042 |
| Item Name | Flange,pipe,blind |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Bolt Circle Diameter | 3.375 INCHES NOMINAL IN |
| Thickness | 0.438 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Operating Pressure and Type | 150.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED AND 100.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 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) WATER MAXIMUM REQUIRED LBS |
| Nondefinitive Spec/std Data | EF TYPE AND PLAIN CLASS |
| Maximum Operating Temp and Media for Which Designed | 150.0 FAHRENHEIT AIR AND 425.0 FAHRENHEIT STEAM AND 150.0 FAHRENHEIT GAS AND 150.0 FAHRENHEIT OIL AND 150.0 FAHRENHEIT WATER DEGF |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Quantity | 4 |
| Furnished Items | GASKET |
| Face Seating Surface Condition | MACHINED |
| Flange Section Style | PLAIN FACE (BLIND) |
| Nominal Pipe Size for Which Designed | 1.250 INCHES IN |
| Flange Diameter | 4.500 INCHES NOMINAL IN |
| Bolt Hole Diameter | 0.562 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-PRF-20042 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-F-20042 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 3132483 PIECE 9 | Naval Ship Systems Command (USA) |
| B176 | Naval Ship Systems Command (USA) |
| A-B4104-1 | Alfa Laval Inc. (USA) |
NSN 4730-00-230-8777 is a Flange,pipe,blind, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-230-8777 has 5 cross-referenced part numbers: MIL-PRF-20042 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-20042 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3132483 PIECE 9 (Naval Ship Systems Command), B176 (Naval Ship Systems Command), A-B4104-1 (Alfa Laval Inc.).
There are 10 known substitutes for 4730-00-230-8777: 5110-00-561-2531, 4730-00-640-6823, 4730-00-640-6827 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for MIL-PRF-20042: Bolt Circle Diameter: 3.375 INCHES NOMINAL IN; Thickness: 0.438 INCHES NOMINAL IN; Material: COPPER ALLOY; Operating Pressure and Type: 150.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED AND 100.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 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) WATER MAXIMUM REQUIRED LBS. 14 total characteristics are documented in the Federal Logistics Information System.