NSN 4820-01-185-4307 E 8512-A 51-B, E8512A51B, 8512
Product Details | SAFETY RELIEF VALVE
4820-01-185-4307 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: E 8512-A 51-B, E8512A51B, 8512, 4820-01-185-4307, 01-185-4307, 4820011854307, 011854307
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 29 JUL 1984 | 01-185-4307 | 05488 ( VALVE, SAFETY RELIEF ) |
Demand History | NSN 4820-01-185-4307
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 8512 | 2025-07-210 | 2 | United States |
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Technical Data | NSN 4820-01-185-4307
| Characteristic | Specifications |
|---|---|
| ADJUSTABLE PRESSURE RANGE | +3001.0/+4050.0 POUNDS PER SQUARE INCH |
| BONNET ATTACHMENT METHOD | BOLTED |
| STYLE DESIGNATOR | ERR-090 |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.500 INCHES ALL ENDS |
| SPECIAL FEATURES | WITH ADJUSTING RING |
| MAXIMUM OPERATING TEMP | 160.0 DEG FAHRENHEIT SINGLE RESPONSE |
| MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE |
| MAXIMUM OPERATING PRESSURE | 3400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CONNECTION TYPE | UNTHREADED INTERNAL TUBE ALL ENDS |
| MATERIAL | COPPER ALLOY BODY |
| CONNECTION STYLE | STREAMLINED WITH TWO BRAZING RINGS (TUBE) ERR-100 |
| FLOW CONTROL DEVICE | DISK |
| BONNET TYPE | EXPOSED SPRING |
| DISK LOADING METHOD | SPRING |
| VALVE OPERATION METHOD | AUTOMATIC |
Restrictions/Controls & Freight Information | NSN 4820-01-185-4307
| 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: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| 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 | ||
Management | NSN 4820-01-185-4307
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9C | Navy-owned stocks of defense construction material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | S9C | Defense Supply Center Columbus Columbus, OH 43215 |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | Y | TERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |