The Valve,check, cataloged under National Stock Number 4820-01-407-3775, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Essex Industries Inc Div Manufacturing Division. Government technical data includes 7 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-407-3775 |
| Primary Part Number | 7M894-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Essex Industries Inc Div Manufacturing Division |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Operating Pressure | 85.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Minimum Operating Temp | -65.0 FAHRENHEIT DEGF |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY BODY |
| Mounting Position | VERTICAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 7M894-1 PRIMARY | Essex Industries Inc Div Manufacturing Division (USA) |
NSN 4820-01-407-3775 is a Valve,check, manufactured by Essex Industries Inc Div Manufacturing Division, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-407-3775 has 1 cross-referenced part number: 7M894-1 (Essex Industries Inc Div Manufacturing Division).
There is 1 known substitute for 4820-01-407-3775: 4730-00-361-3250. Verify interchangeability with system specifications before substitution.
Key specifications for 7M894-1: Flow Control Device: POPPET; Operating Pressure: 85.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Minimum Operating Temp: -65.0 FAHRENHEIT DEGF; Maximum Operating Temp: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF. 8 total characteristics are documented in the Federal Logistics Information System.