NSN 4820-00-477-9750 B41120FF3, 8437270, 00-477-9750
Product Details | GASEOUS PRODUCTS PRESSURE EQUALIZING VALVE
4820-00-477-9750 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: B41120FF3, 8437270, 4820-00-477-9750, 00-477-9750, 4820004779750 , 004779750
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 25 MAY 1970 | 00-477-9750 | 10958 ( VALVE, PRESSURE EQUALIZING, GASEOUS PRODUCTS ) |
Drawings & Photos | NSN 4820-00-477-9750
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Technical Data | NSN 4820-00-477-9750
| Characteristic | Specifications |
|---|---|
| BODY STYLE | B3 SINGLE CONNECTION, STRAIGHT FLOW |
| BODY MATERIAL | ALUMINUM ALLOY, QQ-A-225/6, ALLOY 2024, T4 |
| OUTSIDE SURFACE TREATMENT | ANODIZED |
| SEAT MATERIAL | ALUMINUM ALLOY, QQ-A-225/6, ALLOY 2024, T4 |
| FLOW CONTROL DEVICE | POPPET |
| FLOW CONTROL DEVICE MATERIAL | ALUMINUM |
| STEM MATERIAL | ALUMINUM |
| END CONNECTION QUANTITY | 1 |
| FIRST END CONNECTION TYPE | THREADED EXTERNAL BOSS |
| FIRST END STYLE DESIGNATOR | J10 EXTERNAL SEAT FOR GASKET SEAL |
| FIRST END THREAD CLASS | 3A |
| FIRST END THREAD DIRECTION | RIGHT-HAND |
| MAXIMUM OPERATING PRESSURE | NOT RATED |
| MEDIA FOR WHICH DESIGNED | OXYGEN, GASEOUS |
| TEMP RATING | -65.0 DEG FAHRENHEIT 180.0 DEG FAHRENHEIT |
| OPENING PRESSURE SETTING | 3.0 POUNDS PER SQUARE INCH |
| VALVE VENTING DESIGN TYPE | ATMOSPHERIC |
| VALVE RELIEF DESIGN TYPE | PRESSURE AND VACUUM |
| DISK LOADING METHOD | SPRING |
| ABSOLUTE PRESSURE SETTING | NOT RATED |
Restrictions/Controls & Freight Information | NSN 4820-00-477-9750
| 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: | U | Precious metal type is unknown |
| 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 | 576 | 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 4820-00-477-9750
Army| Category | Code | Description |
|---|---|---|
| Materiel Category and Inventory Manager | J | Ground Forces Support Materiel (DLA/GSA Items) |
| Appropriation and Budget Activity | 2 | Stock Fund Secondary Items |
| Management Inventory Segment | 2 | NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable. |
| Specific Group/Generic Code | 0 | Medical Materiel |
| Weapons Systems/End Item or Homogeneous Group | 00 | DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item |
| Accounting Requirements Code | X | Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items. |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DA | Department of the Army |
| Service Organization | A | U.S. Army |
| Reparability | Z | This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item. |
| Acquisition Advice Codes | V | TERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |