The Valve,safety Relief, cataloged under National Stock Number 4820-00-407-2581, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Allen Aircraft Products Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-407-2581 |
| Primary Part Number | 2D200B |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Allen Aircraft Products Inc |
| Status | ACTIVE |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Series Designator | NPT FIRST END |
| Operating Pressure | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Flow Control Device | STEM |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND FIRST END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Valve Operation Method | MANUAL |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 16811 | Kaydon Custom Filtration Corporation (USA) |
| 16811 | Kaydon Corporation Dba Kaydon Filtration Group (USA) |
| 2D200B PRIMARY | Allen Aircraft Products Inc (USA) |
| 2D200B | General Steel Tank Co (USA) |
| 2D200B | Beta Fueling Systems, Llc (USA) |
| 119039 | United Corp the (USA) |
| 13216E2798 | Cecom Lr Center (USA) |
NSN 4820-00-407-2581 is a Valve,safety Relief, manufactured by Allen Aircraft Products Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-407-2581 has 7 cross-referenced part numbers: 16811 (Kaydon Custom Filtration Corporation), 16811 (Kaydon Corporation Dba Kaydon Filtration Group), 2D200B (Allen Aircraft Products Inc), 2D200B (General Steel Tank Co), 2D200B (Beta Fueling Systems, Llc) and 2 more.
There are 8 known substitutes for 4820-00-407-2581: 5136-00-203-7074, 5340-00-359-9031, 5330-00-983-9494 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2D200B: Maximum Operating Temp: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF; Thread Series Designator: NPT FIRST END; Operating Pressure: 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Flow Control Device: STEM. 11 total characteristics are documented in the Federal Logistics Information System.