NSN 4820-01-078-4788 1853332, 01-078-4788, 010784788
Product Details | GASEOUS PRODUCTS PRESSURE EQUALIZING VALVE
4820-01-078-4788 A valve consisting of a single deadweight loaded disk, or two deadweight loaded disks each with a seperate seat. It is specifically designed for the relief of small pressure and vacuum conditions within a tank or other container to or from the atmosphere. The center of a single deadweight loaded disk may contain a spring loaded disk forming an additional seat or aperture. It may be spring loaded and/or equipped with a manual unloader on either the pressure or vacuum side. Exclude VALVE, VACUUM BREAKING.
Part Alternates: 1853332, 4820-01-078-4788, 01-078-4788, 4820010784788, 010784788
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 14 JUN 1979 | 01-078-4788 | 10958 ( VALVE, PRESSURE EQUALIZING, GASEOUS PRODUCTS ) |
Drawings & Photos | NSN 4820-01-078-4788
Cross Reference | NSN 4820-01-078-4788
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1853332 | 03956 | NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NAVAL AND MARINE SYSTEMS |
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Technical Data | NSN 4820-01-078-4788
| Characteristic | Specifications |
|---|---|
| BODY STYLE | D1 STRAIGHT THRU |
| BODY MATERIAL | STEEL |
| FLOW CONTROL DEVICE | NEEDLE |
| END CONNECTION QUANTITY | 2 |
| FIRST END CONNECTION TYPE | THREADED EXTERNAL TUBE |
| FIRST END STYLE DESIGNATOR | J3 FLARED |
| FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.500 INCHES NOMINAL |
| FIRST END THREAD PITCH DIAMETERS | 0.5976 TO 0.5978 INCHES |
| FIRST END THREAD DIRECTION | RIGHT-HAND |
| FIRST END THREAD SERIES DESIGNATOR | UNEF |
| FIRST END NOMINAL THREAD SIZE | 0.625 INCHES |
| FIRST END THREAD TOLERANCE CLASS | 3A EXTERNAL |
| SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| SECOND END CONNECTION TYPE | UNTHREADED INTERNAL HOSE |
| SECOND END STYLE DESIGNATOR | H10 HOSE SOCKET |
| SECOND END INSIDE DIAMETER HOSE ACCOMMODATED | 0.250 INCHES NOMINAL |
| SECOND END OUTSIDE DIAMETER HOSE ACCOMMODATED | 0.250 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| MAXIMUM OPERATING PRESSURE | 45.0 POUNDS PER SQUARE INCH |
| MEDIA FOR WHICH DESIGNED | GAS |
| TEMP RATING | NOT RATED |
| VALVE VENTING DESIGN TYPE | ATMOSPHERIC |
| VALVE RELIEF DESIGN TYPE | PRESSURE AND VACUUM |
| III END ITEM IDENTIFICATION | USED ON MASTER GYRO COMPASS MK 27 MOD 1 SYSTEM ONBOARD VARIOUS COAST GUARD VESSELS |
| MANUFACTURERS CODE | 03956 |
| DESIGN CONTROL REFERENCE | 1853332 |
Restrictions/Controls & Freight Information | NSN 4820-01-078-4788
| 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 | XF | |
| 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 4820-01-078-4788
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of 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 | 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 |