NSN 4820-01-221-1578 D49695, R10AH5L502CS4, R10AH5L502-CS4
Product Details | SAFETY RELIEF VALVE
4820-01-221-1578 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: D49695, R10AH5L502CS4, R10AH5L502-CS4, R10AZ5L502CS4, R10AZ5L502-CS4, 4820-01-221-1578, 01-221-1578, 4820012211578, 012211578
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 24 NOV 1985 | 01-221-1578 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-01-221-1578
Demand History | NSN 4820-01-221-1578
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| D49695 | 2016-07-211 | 1 | |
| D49695 | 2015-07-210 | 2 | |
| D49695 | 2013-07-201 | 1 | |
| 4820-01-221-1578 | 2012-06-181 | 1 | DIBBS |
| 4820-01-221-1578 | 2012-06-174 | 1 | DIBBS |
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Related Products | NSN 4820-01-221-1578
Technical Data | NSN 4820-01-221-1578
| Characteristic | Specifications |
|---|---|
| BOLT CIRCLE NOMINAL DIAMETER | 3.875 INCHES 2ND END |
| NOMINAL OUTSIDE DIAMETER | 7.500 INCHES 1ST END |
| RAISED FACE NOMINAL HEIGHT | 0.062 INCHES ALL ENDS |
| BOLT HOLE NOMINAL DIAMETER | 0.625 INCHES 2ND END |
| NOMINAL OUTSIDE DIAMETER | 5.000 INCHES 2ND END |
| BONNET ATTACHMENT METHOD | BOLTED |
| MATERIAL | STEEL BODY |
| FURNISHED ITEMS AND QUANTITY | 1 LEVER |
| RAISED FACE NOMINAL DIAMETER | 5.000 INCHES 1ST END |
| MATERIAL | STEEL CORROSION RESISTING SEAT |
| RAISED FACE NOMINAL DIAMETER | 2.875 INCHES 2ND END |
| MAXIMUM OPERATING PRESSURE | 400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MATERIAL | STEEL COMP 303 STEM |
| BOLT HOLE QUANTITY | 4 ALL ENDS |
| MATERIAL | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| STYLE DESIGNATOR | C1A ANGLE FLANGED ENDS |
| MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE |
| ADJUSTABLE PRESSURE RANGE | +8.0/+10.0 POUNDS PER SQUARE INCH |
| NOMINAL THICKNESS | 0.938 INCHES 1ST END |
| CONNECTION TYPE | FLANGE ALL ENDS |
| FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS |
| VALVE SIZE | 1.500 INCHES |
| FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 5.370 INCHES |
| BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES 1ST END |
| NOMINAL THICKNESS | 0.688 INCHES 2ND END |
| FLOW CONTROL DEVICE | DISK |
| BOLT CIRCLE NOMINAL DIAMETER | 6.000 INCHES 1ST END |
| MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| BONNET TYPE | INSIDE SCREW |
| SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 5.680 INCHES |
Restrictions/Controls & Freight Information | NSN 4820-01-221-1578
| 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 | V | Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above. |
| 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 4820-01-221-1578
Navy| 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 |
| Reparability | D | Field Level Reparables |
| Acquisition Advice Codes | Z | INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |