NSN 4820-01-259-8777 X559T18M10, X559T1-8M-10, 4875
Product Details | SAFETY RELIEF VALVE
4820-01-259-8777 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: X559T18M10, X559T1-8M-10, 4875, 4875CG503, 4875C-G503, 4875G503, 4875-G503 , 4820-01-259-8777, 01-259-8777, 4820012598777, 012598777
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 22 JUL 1987 | 01-259-8777 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-01-259-8777
Demand History | NSN 4820-01-259-8777
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 4875-G503 | 2025-10-296 | 5 | DIBBS |
| 4875-G503 | 2023-04-99 | 2 | DIBBS |
| 4875-G503 | 2022-07-202 | 1 | DIBBS |
| 4875-G503 | 2022-06-158 | 1 | DIBBS |
| 4875-G503 | 2021-02-47 | 1 | DIBBS |
| 4875-G503 | 2021-02-33 | 1 | DIBBS |
| 4875-G503 | 2020-07-189 | 1 | DIBBS |
| 4875-G503 | 2019-08-239 | 1 | DIBBS |
| 4820-01-259-8777 | 2015-01-11 | 2 | DIBBS |
Cross Reference | NSN 4820-01-259-8777
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 4875 | 1A883 | LINDCO-SPRINGFIELD INC DBA LINDCO CONTROLS DIV |
| 4875 | 22501 | HOWELL LABORATORIES, INC. |
| 4875C-G503 | 1A883 | LINDCO-SPRINGFIELD INC DBA LINDCO CONTROLS DIV |
| 4875C-G503 | 22501 | HOWELL LABORATORIES, INC. |
| X559T1-8M-10 | 91816 | CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS |
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Technical Data | NSN 4820-01-259-8777
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL CORROSION RESISTING BODY |
| STYLE DESIGNATOR | C6 STRAIGHT THRU |
| FLOW CONTROL DEVICE | PISTON |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL PIPE ALL ENDS |
| CONNECTION STYLE | G46B PLAIN ALL ENDS |
| THREAD SERIES DESIGNATOR | NPT ALL ENDS |
| NOMINAL THREAD SIZE | 1.000 INCHES ALL ENDS |
| THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| ADJUSTABLE PRESSURE RANGE | 6.0 TO 14.0 POUNDS PER SQUARE INCH |
Restrictions/Controls & Freight Information | NSN 4820-01-259-8777
| 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 4820-01-259-8777
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 |