The Valve,safety Relief, cataloged under National Stock Number 4820-00-287-2189, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Union Carbide Corp Sub of Dow Co the. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 3 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 | 4820-00-287-2189 |
| Primary Part Number | 55H19 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Union Carbide Corp Sub of Dow Co the |
| Status | ACTIVE |
| Bonnet Type | INSIDE SPRING |
| Thread Series Designator | NPT ALL ENDS |
| Material | COPPER ALLOY SEAT |
| Opening Pressure Setting | 30.0 POUNDS PER SQUARE INCH LBS |
| Material | COPPER ALLOY STEM |
| Material | COPPER ALLOY BODY |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Style Designator | ANGLE |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Flow Control Device | DISK |
| Valve Operation Method | AUTOMATIC |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Material | RUBBER FLOW CONTROL DEVICE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Bonnet Attachment Method | THREADED |
| Disk Loading Method | SPRING |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 910 | Mc Donald a Y Mfg Co (USA) |
| 55H19 PRIMARY | Union Carbide Corp Sub of Dow Co the (USA) |
| 910-34-30PSI | Mc Donald a Y Mfg Co (USA) |
| 55H19 | L-Tec Welding and Cutting Systems (USA) |
| 910-3-4-30PS1 | Mc Donald a Y Mfg Co (USA) |
| 3046 | Mc Donald a Y Mfg Co (USA) |
| 6214-3/4 IN. | Mc Donald a Y Mfg Co (USA) |
| 6214-137 | Mc Donald a Y Mfg Co (USA) |
| D15R35 PRIMARY | Union Carbide Corp Sub of Dow Co the (USA) |
NSN 4820-00-287-2189 is a Valve,safety Relief, manufactured by Union Carbide Corp Sub of Dow Co the, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-287-2189 has 9 cross-referenced part numbers: 910 (Mc Donald a Y Mfg Co), 55H19 (Union Carbide Corp Sub of Dow Co the), 910-34-30PSI (Mc Donald a Y Mfg Co), 55H19 (L-Tec Welding and Cutting Systems), 910-3-4-30PS1 (Mc Donald a Y Mfg Co) and 4 more.
There are 11 known substitutes for 4820-00-287-2189: 4820-00-022-3223, 5920-00-224-1632, 6220-00-250-5461 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 55H19: Bonnet Type: INSIDE SPRING; Thread Series Designator: NPT ALL ENDS; Material: COPPER ALLOY SEAT; Opening Pressure Setting: 30.0 POUNDS PER SQUARE INCH LBS. 18 total characteristics are documented in the Federal Logistics Information System.