The Valve,safety Relief, cataloged under National Stock Number 4820-01-395-3447, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Tr Engineering, Inc Div Tr Engineering Incorporated. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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 | 4820-01-395-3447 |
| Primary Part Number | 740003 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Tr Engineering, Inc Div Tr Engineering Incorporated |
| Status | ACTIVE |
| Material | STEEL BODY |
| Opening Pressure Setting | 1.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| Surface Treatment | CADMIUM LOCATION NOT OTHERWISE SPECIFIED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 740003 PRIMARY | Tr Engineering, Inc Div Tr Engineering Incorporated (USA) |
NSN 4820-01-395-3447 is a Valve,safety Relief, manufactured by Tr Engineering, Inc Div Tr Engineering Incorporated, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-395-3447 has 1 cross-referenced part number: 740003 (Tr Engineering, Inc Div Tr Engineering Incorporated).
There are 2 known substitutes for 4820-01-395-3447: 6515-00-754-0426, 4520-01-310-0690. Verify interchangeability with system specifications before substitution.
Key specifications for 740003: Material: STEEL BODY; Opening Pressure Setting: 1.0 POUNDS PER SQUARE INCH LBS; End Item Identification: 1730-01-309-1243; Valve Operation Method: AUTOMATIC. 5 total characteristics are documented in the Federal Logistics Information System.