Product Details | CHECK VALVE
4820-01-257-1491 A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
Part Alternates: 4848B12, 484-8B1-2, 4820-01-257-1491, 01-257-1491, 4820012571491, 012571491
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 12 JUN 1987 | 01-257-1491 | 05487 ( VALVE, CHECK ) |
Drawings & Photos | NSN 4820-01-257-1491
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NSNs for Compare ( up to 4 ): Add 4820-01-257-1491
Related Products | NSN 4820-01-257-1491
4820-01-257-1492, 4820-01-257-1493, 4820-01-257-1495, 4820-01-257-1510, 4820-01-257-1542
Technical Data | NSN 4820-01-257-1491
| Characteristic | Specifications |
|---|---|
| MATERIAL | COPPER ALLOY BODY STEEL COMP 304 FLOW CONTROL DEVICE RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT |
| STYLE DESIGNATOR | A6 STRAIGHT THRU |
| FLOW CONTROL DEVICE | POPPET |
| MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE HYDRAULIC FLUID, MINERAL BASE 2ND RESPONSE |
| MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 200.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END THREADED EXTERNAL PIPE 2ND END |
| CONNECTION STYLE | B43 EXTERNAL SEAT FOR GASKET SEAL 1ST END B46B PLAIN 2ND END |
| SEAT ANGLE | 37.0 DEGREES 1ST END |
| THREAD SERIES DESIGNATOR | UNJ 1ST END NPT 2ND END |
| NOMINAL THREAD SIZE | 0.750 INCHES 1ST END 0.375 INCHES 2ND END |
| THREAD QUANTITY PER INCH | 16 1ST END |
| THREAD CLASS | 3A 1ST END |
| THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| MOUNTING POSITION | HORIZONTAL |
Restrictions/Controls & Freight Information | NSN 4820-01-257-1491
| 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 | 051080 | FAUCETS,BIBCOCKS,GATES VALVES |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| 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 4820-01-257-1491
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 | 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 |