The Valve,plug, cataloged under National Stock Number 4820-01-141-6721, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cunico Corporation. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-141-6721 |
| Primary Part Number | DD-1809 3INCH FLOW PLAN 7 |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Cunico Corporation |
| Status | ACTIVE |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Connection Type | FLANGE FIRST END |
| Valve Operation Method | MANUAL |
| Media for Which Designed | ACID, NITRIC FIRST RESPONSE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND RUBBER FLUOROCARBON CLASS FPM PACKING |
| Connection Type | FLANGE THIRD END |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SECOND RESPONSE |
| Flange Face Design | PLAIN FIRST END |
| Media for Which Designed | WATER, SALT THIRD RESPONSE |
| Operating Pressure | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Outside Diameter | 6.625 INCHES FIRST END IN |
| Maximum Operating Temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Thickness | 0.500 INCHES FIRST END IN |
| Material Document and Classification | TYPE 1,CLASS 1 MIL STD 2ND MATERIAL RESPONSE PACKING |
| Connection Type | FLANGE SECOND END |
| Surface Treatment | PLASTIC POLYTETRAFLUOROETHYLENE |
| Material | COPPER ALLOY BODY |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| DD-1809 3INCH FLOW PLAN 7 | Cunico Corporation (USA) |
| 3FRP3 FLOW PLAN 7 | Cunico Corporation (USA) |
| MIL-24509-33X7 | Hunt Valve Company, Inc. (USA) |
| M24509-30III7XP OR B | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| DD-1809-3IN FL0 | Cunico Corporation (USA) |
| 5133181-3INFIG7 | R & M Energy Systems Tomball P (USA) |
| MIL-24509-33X7 | Morland Valve Co Inc Sub of Smith Valve Corp (USA) |
| MIL-DTL-24509 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| FRP3-3IN FL0W P | Cunico Corporation (USA) |
| MIL-V-24509 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 5133181 | R & M Energy Systems Tomball P (USA) |
NSN 4820-01-141-6721 is a Valve,plug, manufactured by Cunico Corporation, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-141-6721 has 11 cross-referenced part numbers: DD-1809 3INCH FLOW PLAN 7 (Cunico Corporation), 3FRP3 FLOW PLAN 7 (Cunico Corporation), MIL-24509-33X7 (Hunt Valve Company, Inc.), M24509-30III7XP OR B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), DD-1809-3IN FL0 (Cunico Corporation) and 6 more.
There are 11 known substitutes for 4820-01-141-6721: 4820-00-263-1148, 4820-00-263-1170, 4820-01-032-9357 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for DD-1809 3INCH FLOW PLAN 7: Material: COPPER ALLOY FLOW CONTROL DEVICE; Connection Type: FLANGE FIRST END; Valve Operation Method: MANUAL; Media for Which Designed: ACID, NITRIC FIRST RESPONSE. 19 total characteristics are documented in the Federal Logistics Information System.