The Cock,poppet Drain, cataloged under National Stock Number 4820-00-904-6903, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-904-6903 |
| Primary Part Number | 3-3494 |
| Item Name | Cock,poppet Drain |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Connection Type | FLANGE FIRST END |
| Nominal Outside Diameter | 4.125 INCHES FIRST END IN |
| Style Designator | ANGLE |
| Flange Shape | ROUND FIRST END |
| Bolt Circle Nominal Diameter | 0.280 INCHES FIRST END IN |
| Bolt Hole Quantity | 8 FIRST END |
| Material | ALUMINUM ALLOY BODY |
| Flange Face Design | RAISED STRAIGHT FIRST END |
| Renewable Seat Ring Type | PRESSED-IN |
| Bolt Hole Nominal Diameter | 0.280 INCHES FIRST END IN |
| Raised Face Nominal Diameter | 2.582 INCHES FIRST END IN |
| Material | RUBBER SYNTHETIC SEAT |
| Material | STEEL FLOW CONTROL DEVICE |
| Flow Control Device | POPPET |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 0.200 INCHES FIRST END IN |
| Raised Face Nominal Height | 0.725 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-904-6903 is a Cock,poppet Drain, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-904-6903 has 2 cross-referenced part numbers: 3-3494 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 3-3494 (Parker-Hannifin Corporation Dba Pneutronics).
There are 6 known substitutes for 4820-00-904-6903: 5365-00-050-9798, 5950-00-071-5754, 3455-00-187-2561 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3-3494: Connection Type: FLANGE FIRST END; Nominal Outside Diameter: 4.125 INCHES FIRST END IN; Style Designator: ANGLE; Flange Shape: ROUND FIRST END. 17 total characteristics are documented in the Federal Logistics Information System.