The Valve,safety Relief, cataloged under National Stock Number 4820-00-111-2421, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cecom Lr Center. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-111-2421 |
| Primary Part Number | 13216E0010 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Cecom Lr Center |
| Status | ACTIVE |
| Bonnet Type | INSIDE SPRING |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Connection Style | PLAIN (PIPE) FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Style Designator | ANGLE |
| Opening Pressure Setting | 350.0 POUNDS PER SQUARE INCH LBS |
| Operating Pressure | 450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | NPT FIRST END |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Flow Control Device | POPPET |
| Features Provided | VALVE STEM LOCK SHIELD |
| Disk Loading Method | SPRING |
| Valve Operation Method | AUTOMATIC |
| Material | COPPER ALLOY OVERALL |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST END IN |
| Bonnet Attachment Method | INTEGRAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 5221-350 | Triumph Thermal Systems - Maryland, Inc. (USA) |
| 13216E0010 PRIMARY | Cecom Lr Center (USA) |
| 202836 | Triumph Thermal Systems - Maryland, Inc. (USA) |
| 5221-350 | Henry Technologies, Inc. (USA) |
NSN 4820-00-111-2421 is a Valve,safety Relief, manufactured by Cecom Lr Center, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-111-2421 has 4 cross-referenced part numbers: 5221-350 (Triumph Thermal Systems - Maryland, Inc.), 13216E0010 (Cecom Lr Center), 202836 (Triumph Thermal Systems - Maryland, Inc.), 5221-350 (Henry Technologies, Inc.).
There are 2 known substitutes for 4820-00-111-2421: 6625-00-756-1321, 6515-01-577-1616. Verify interchangeability with system specifications before substitution.
Key specifications for 13216E0010: Bonnet Type: INSIDE SPRING; Media for Which Designed: AIR SINGLE RESPONSE; Connection Style: PLAIN (PIPE) FIRST END; Thread Direction: RIGHT-HAND FIRST END. 16 total characteristics are documented in the Federal Logistics Information System.