The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-690-2068, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Imi Cash Valve Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 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 | 4820-00-690-2068 |
| Primary Part Number | 6656 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Imi Cash Valve Inc |
| Status | ACTIVE |
| Hole Diameter | 0.450 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Outside Diameter | 5.850 INCHES NOMINAL IN |
| Bolt Hole Quantity | 10 |
| Material Thickness | 0.080 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| Bolt Circle Diameter | 5.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6656 PRIMARY | Imi Cash Valve Inc (USA) |
| 200110AHPC486 | Siemens Energy, Inc. Dba Dresser-Rand (USA) |
| 200110AHPC486 | Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA) |
| 4820PL1380156 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 4750B | Siemens Energy, Inc. Dba Dresser-Rand (USA) |
| 200110AHPC486 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 200110AHPC486 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 4750B | Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA) |
| 4750B | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
NSN 4820-00-690-2068 is a Diaphragm,valve,flat, manufactured by Imi Cash Valve Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-690-2068 has 9 cross-referenced part numbers: 6656 (Imi Cash Valve Inc), 200110AHPC486 (Siemens Energy, Inc. Dba Dresser-Rand), 200110AHPC486 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 4820PL1380156 (Jednolity Indeks Materialowy - Uniform Material Index), 4750B (Siemens Energy, Inc. Dba Dresser-Rand) and 4 more.
There are 10 known substitutes for 4820-00-690-2068: 5133-00-061-6288, 3120-00-237-7682, 4940-00-318-9078 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6656: Hole Diameter: 0.450 INCHES NOMINAL IN; Style Designator: FLAT; Outside Diameter: 5.850 INCHES NOMINAL IN; Bolt Hole Quantity: 10. 7 total characteristics are documented in the Federal Logistics Information System.