NSN 4820-01-088-7460 20039, 20039H91SS, 01-088-7460
Product Details | SAFETY RELIEF VALVE
4820-01-088-7460 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: 20039, 20039H91SS, 4820-01-088-7460, 01-088-7460, 4820010887460, 010887460
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 18 JAN 1980 | 01-088-7460 | 05488 ( VALVE, SAFETY RELIEF ) |
Demand History | NSN 4820-01-088-7460
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 2003901S0111 | 2023-01-22 | 2 | DIBBS |
| 2003901S0111 | 2022-10-291 | 2 | DIBBS |
| 2003901S0111 | 2022-03-69 | 1 | DIBBS |
| 2003901S0111 | 2022-02-58 | 1 | DIBBS |
| 2003901S0111 | 2021-10-274 | 2 | DIBBS |
| 2003901S0111 | 2021-09-262 | 2 | DIBBS |
| 2003901S0111 | 2021-06-179 | 1 | DIBBS |
| 2003901S0111 | 2020-10-282 | 1 | DIBBS |
| 2003901S0111 | 2020-09-267 | 1 | DIBBS |
| 20039H91SS | 2019-10-300 | 2 | DIBBS |
| 20039H91SS | 2019-04-104 | 1 | DIBBS |
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Technical Data | NSN 4820-01-088-7460
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL BODY STEEL FLOW CONTROL DEVICE RUBBER SYNTHETIC PACKING STEEL COMP 303 SEAT STEEL COMP 303 STEM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A351,GRADE CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY ASTM A351,GRADE CF8M ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE MIL-P-5516,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE PACKING QQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE SEAT QQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| STYLE DESIGNATOR | C1A ANGLE FLANGED ENDS |
| FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 3.250 INCHES |
| SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 3.250 INCHES |
| VALVE SIZE | 0.500 INCHES |
| FLOW CONTROL DEVICE | DISK |
| MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE |
| MAXIMUM OPERATING PRESSURE | 275.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | FLANGE ALL ENDS |
| FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| NOMINAL OUTSIDE DIAMETER | 3.500 INCHES ALL ENDS |
| NOMINAL THICKNESS | 0.438 INCHES ALL ENDS |
| BOLT HOLE QUANTITY | 4 ALL ENDS |
| BOLT HOLE NOMINAL DIAMETER | 0.500 INCHES ALL ENDS |
| BOLT CIRCLE NOMINAL DIAMETER | 2.375 INCHES ALL ENDS |
| FLANGE FACE DESIGN | RAISED WITH CURVE AND RADIUS ALL ENDS |
| RAISED FACE NOMINAL HEIGHT | 0.062 INCHES ALL ENDS |
| RAISED FACE NOMINAL DIAMETER | 1.375 INCHES ALL ENDS |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 111.0 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| TEST DATA DOCUMENT | 81349-MIL-S-901 SPECIFICATION |
Restrictions/Controls & Freight Information | NSN 4820-01-088-7460
| 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 4820-01-088-7460
| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 3B | Navy-owned stocks of field level repairable 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 |



