NSN 4820-01-209-4642 10024176, 1002-4176, 122EV
Product Details | SAFETY RELIEF VALVE
4820-01-209-4642 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
Part Alternates: 10024176, 1002-4176, 122EV, 4820-01-209-4642, 01-209-4642, 4820012094642, 012094642
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 30 MAY 1985 | 01-209-4642 | 05488 ( VALVE, SAFETY RELIEF ) |
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Technical Data | NSN 4820-01-209-4642
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL BODY |
| STYLE DESIGNATOR | STRAIGHT THRU |
| FLOW CONTROL DEVICE | DISK |
| MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |
| MAXIMUM OPERATING PRESSURE | 7.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | FLANGE ALL ENDS |
| FLANGE SHAPE | ROUND ALL ENDS |
| NOMINAL OUTSIDE DIAMETER | 7.480 INCHES ALL ENDS |
| NOMINAL THICKNESS | 0.630 INCHES ALL ENDS |
| FLANGE FACE DESIGN | PLAIN ALL ENDS |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 7.0 POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | USED AS A CRANKCASE RELIEF VALVE ON A MODEL 6 MP-24T MURPHY DIESEL ENGINE ONBOARD WTGB 140 FT U. S. COAST GUARD VESSELS |
| MANUFACTURERS CODE | 24643 |
| DESIGN CONTROL REFERENCE | 122EV |
Restrictions/Controls & Freight Information | NSN 4820-01-209-4642
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | B | Munitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.) |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||