The Cock,poppet Drain, cataloged under National Stock Number 4820-00-821-8021, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Auto-Valve, Inc. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-821-8021 |
| Primary Part Number | 475C59W |
| Item Name | Cock,poppet Drain |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Auto-Valve, Inc |
| Status | CANCELLED |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Flow Control Device | POPPET |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Valve Operation Method | MANUAL |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Seat Angle | 37.0 DEGREES FIRST END |
| Material | ALUMINUM ALLOY BODY |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Thread Class | 3B SECOND END |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Operating Pressure | 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | STRAIGHT THRU |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Thread Class | 3A FIRST END A |
| Surface Treatment | ANODIZE |
| Material | RUBBER SYNTHETIC SEAT |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 475C59W PRIMARY | Auto-Valve, Inc (USA) |
| 10003196 PRIMARY | Us Army Aviation and Missile Command (USA) |
| 475C59NW PRIMARY | Auto-Valve, Inc (USA) |
| AV475C59NW PRIMARY | Auto-Valve, Inc (USA) |
| 10607887-1 | Lockheed Martin Corporation (USA) |
| 57A1-2 | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| 633691-4 | Lockheed Martin Services, Llc (USA) |
| 301-00F59 PRIMARY | Dukes Aerospace, Inc. (USA) |
| 10607887-1 | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| 08101-2 PRIMARY | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 10607887-1 | Us Army Aviation and Missile Command (USA) |
| 8101-2 PRIMARY | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 08101-6AF | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 633691-4 | Lockheed Martin Corp (USA) |
| 49F9798-59 | Department of the Air Force (USA) |
NSN 4820-00-821-8021 is a Cock,poppet Drain, manufactured by Auto-Valve, Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-821-8021 has 15 cross-referenced part numbers: 475C59W (Auto-Valve, Inc), 10003196 (Us Army Aviation and Missile Command), 475C59NW (Auto-Valve, Inc), AV475C59NW (Auto-Valve, Inc), 10607887-1 (Lockheed Martin Corporation) and 10 more.
There are 8 known substitutes for 4820-00-821-8021: 5340-00-114-5520, 5330-00-301-9672, 6930-00-373-9588 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 475C59W: Connection Type: THREADED INTERNAL BOSS SECOND END; Thread Direction: RIGHT-HAND SECOND END; Thread Direction: RIGHT-HAND FIRST END; Flow Control Device: POPPET. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-821-8021 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.