Product Details | GASEOUS PRODUCTS PRESSURE EQUALIZING VALVE
4820-01-257-1495 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: TA77050C50CR, TA770-50C-50C-R, 11450540-1, 11450540, 4820-01-257-1495, 01-257-1495, 4820012571495, 012571495, 114505401
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 12 JUN 1987 | 01-257-1495 | 10958 ( VALVE, PRESSURE EQUALIZING, GASEOUS PRODUCTS ) |
Drawings & Photos | NSN 4820-01-257-1495
Demand History | NSN 4820-01-257-1495
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| TA770-50C-50C-R | 2020-10-20 | 139 | DIBBS |
| TA77050C50CR | 2018-07-25 | 4 | United States |
| 4820-01-257-1495 | 2016-10-25 | 219 | DIBBS |
| 4820-01-257-1495 | 2016-02-16 | 5 | Japan |
| 4820-01-257-1495 | 2015-07-28 | 6 | Japan |
| 4820-01-257-1495 | 2014-01-22 | 115 | DIBBS |
| 4820-01-257-1495 | 2013-08-01 | 112 | DIBBS |
| 4820-01-257-1495 | 2013-03-28 | 58 | DIBBS |
| 4820-01-257-1495 | 2012-09-05 | 41 | DIBBS |
| 4820-01-257-1495 | 2012-08-02 | 42 | DIBBS |
| 4820-01-257-1495 | 2012-06-06 | 47 | DIBBS |
| 4820-01-257-1495 | 2012-02-24 | 28 | DIBBS |
| 4820-01-257-1495 | 2011-03-21 | 25 | DIBBS |
| 4820-01-257-1495 | 2010-08-30 | 37 | DIBBS |
| 4820-01-257-1495 | 2010-07-29 | 42 | DIBBS |
| 4820-01-257-1495 | 2010-05-20 | 20 | DIBBS |
| 4820-01-257-1495 | 2009-07-02 | 42 | DIBBS |
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NSNs for Compare ( up to 4 ): Add 4820-01-257-1495
Related Products | NSN 4820-01-257-1495
4820-01-257-1510, 4820-01-257-1542, 4820-01-257-1544, 4820-01-257-1545, 4820-01-257-1546
Technical Data | NSN 4820-01-257-1495
| Characteristic | Specifications |
|---|---|
| BODY STYLE | B3 SINGLE CONNECTION, STRAIGHT FLOW |
| BODY MATERIAL | ALUMINUM ALLOY |
| FLOW CONTROL DEVICE | ANY ACCEPTABLE |
| END CONNECTION QUANTITY | 1 |
| FIRST END CONNECTION TYPE | THREADED EXTERNAL TUBE |
| FIRST END STYLE DESIGNATOR | J6 PLAIN |
| FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED | 2.050 INCHES NOMINAL |
| FIRST END THREAD CLASS | 2A |
| FIRST END THREAD DIRECTION | RIGHT-HAND |
| MAXIMUM OPERATING PRESSURE | NOT RATED |
| MEDIA FOR WHICH DESIGNED | AIR NITROGEN, GASEOUS |
| TEMP RATING | 160.0 DEG FAHRENHEIT |
| VALVE VENTING DESIGN TYPE | ATMOSPHERIC |
| VALVE RELIEF DESIGN TYPE | PRESSURE AND VACUUM |
Restrictions/Controls & Freight Information | NSN 4820-01-257-1495
| 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 | AH | Defense Supply Center Columbus Columbus, OH 43215 |
| 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 4820-01-257-1495
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 | D | DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative | Purchasing | QTY UOM |
1 EA : Each |