NSN 4820-01-179-4803 D49232-1OT12 PSI, D492321OT12PSI, R10AL2N203
Product Details | SAFETY RELIEF VALVE
4820-01-179-4803 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: D49232-1OT12 PSI, D492321OT12PSI, R10AL2N203, 4820-01-179-4803, 01-179-4803, 4820011794803, 011794803
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 18 MAY 1984 | 01-179-4803 | 05488 ( VALVE, SAFETY RELIEF ) |
Demand History | NSN 4820-01-179-4803
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| D49232-1OT12 PSI | 2022-06-175 | 8 | DIBBS |
| R10AL2N203 | 2022-06-175 | 8 | DIBBS |
| D49232-1OT12 PSI | 2022-04-112 | 8 | DIBBS |
| R10AL2N203 | 2022-04-112 | 8 | DIBBS |
| D49232-1OT12 PSI | 2022-03-79 | 1 | DIBBS |
| R10AL2N203 | 2022-03-79 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-12-350 | 1 | DIBBS |
| R10AL2N203 | 2021-12-350 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-12-339 | 1 | DIBBS |
| R10AL2N203 | 2021-12-339 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-09-266 | 1 | DIBBS |
| R10AL2N203 | 2021-09-266 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-09-255 | 1 | DIBBS |
| R10AL2N203 | 2021-09-255 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-05-132 | 1 | DIBBS |
| R10AL2N203 | 2021-05-132 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-04-115 | 1 | DIBBS |
| R10AL2N203 | 2021-04-115 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-04-98 | 2 | DIBBS |
| R10AL2N203 | 2021-04-98 | 2 | DIBBS |
| D49232-1OT12 PSI | 2021-03-89 | 1 | DIBBS |
| R10AL2N203 | 2021-03-89 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-03-87 | 1 | DIBBS |
| R10AL2N203 | 2021-03-87 | 1 | DIBBS |
| D49232-1OT12 PSI | 2021-03-84 | 1 | DIBBS |
| R10AL2N203 | 2021-03-84 | 1 | DIBBS |
| D49232-1OT12 PSI | 2020-12-348 | 1 | DIBBS |
| R10AL2N203 | 2020-12-348 | 1 | DIBBS |
| D49232-1OT12 PSI | 2020-06-159 | 1 | DIBBS |
| R10AL2N203 | 2020-06-159 | 1 | DIBBS |
| 4820-01-179-4803 | 2019-09-255 | 1 | US |
| D49232-1OT12 PSI | 2019-07-209 | 2 | DIBBS |
| R10AL2N203 | 2019-07-209 | 2 | DIBBS |
| D49232-1OT12 PSI | 2019-04-120 | 1 | DIBBS |
| R10AL2N203 | 2019-04-120 | 1 | DIBBS |
| 4820-01-179-4803 | 2018-06-177 | 1 | DIBBS |
| 4820-01-179-4803 | 2018-03-64 | 1 | DIBBS |
| 4820-01-179-4803 | 2018-02-52 | 1 | DIBBS |
| 4820-01-179-4803 | 2015-06-173 | 1 | DIBBS |
| 4820-01-179-4803 | 2015-06-160 | 1 | DIBBS |
| 4820-01-179-4803 | 2015-04-111 | 4 | DIBBS |
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Related Products | NSN 4820-01-179-4803
Technical Data | NSN 4820-01-179-4803
| Characteristic | Specifications |
|---|---|
| MATERIAL | COPPER ALLOY BODY COPPER ALLOY FLOW CONTROL DEVICE |
| STYLE DESIGNATOR | C1A ANGLE FLANGED ENDS |
| FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 6.375 INCHES |
| SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 5.750 INCHES |
| VALVE SIZE | 4.000 INCHES |
| FLOW CONTROL DEVICE | DISK |
| MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC OR MANUAL |
| CONNECTION TYPE | FLANGE 1ST END FLANGE 2ND END |
| FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| NOMINAL OUTSIDE DIAMETER | 9.000 INCHES ALL ENDS |
| NOMINAL THICKNESS | 0.500 INCHES ALL ENDS |
| BOLT HOLE QUANTITY | 8 ALL ENDS |
| BOLT HOLE NOMINAL DIAMETER | 0.562 INCHES ALL ENDS |
| BOLT CIRCLE NOMINAL DIAMETER | 6.562 INCHES 1ST END 5.500 INCHES 2ND END |
| FLANGE FACE DESIGN | PLAIN ALL ENDS |
| BONNET TYPE | INSIDE SPRING |
| BONNET ATTACHMENT METHOD | BOLTED |
| DISK LOADING METHOD | SPRING |
| ADJUSTABLE PRESSURE RANGE | 10.0 TO 12.0 POUNDS PER SQUARE INCH |
| FURNISHED ITEMS AND QUANTITY | 1 LEVER |
Restrictions/Controls & Freight Information | NSN 4820-01-179-4803
| 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 |
|---|---|---|
| NMF Description | 127220 | PRESSURE REG/RED/RELIEF VALVES NOI |
| Less than car load rating | ||
| Less than truck load rating | P | 77.5 |
| Water commodity Code | 594 | unknown |
| Originating Activity Code | AX | Defense Supply Center Columbus Columbus, OH 43216-5000 |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | B | Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |
Management | NSN 4820-01-179-4803
| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 3B | Navy-owned stocks of field level repairable DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |



