NSN 4820-01-054-6657 D524A6D19, D524A6D190, D524A6D19-0
Product Details | SAFETY RELIEF VALVE
4820-01-054-6657 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: D524A6D19, D524A6D190, D524A6D19-0, 4820-01-054-6657, 01-054-6657, 4820010546657, 010546657
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 24 JAN 1978 | 01-054-6657 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-01-054-6657
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Related Products | NSN 4820-01-054-6657
Technical Data | NSN 4820-01-054-6657
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/4,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE |
| STYLE DESIGNATOR | C5 STRAIGHT THRU W/BAFFLE |
| FLOW CONTROL DEVICE | POPPET |
| MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE CARBON DIOXIDE 2ND RESPONSE HELIUM 3RD RESPONSE HYDROGEN 4TH RESPONSE NITROGEN, GASEOUS 5TH RESPONSE |
| MAXIMUM OPERATING PRESSURE | 30.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 400.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END |
| CONNECTION STYLE | G43 EXTERNAL SEAT FOR GASKET SEAL 1ST END |
| SEAT ANGLE | 37.0 DEGREES 1ST END |
| THREAD SERIES DESIGNATOR | UNJF 1ST END |
| NOMINAL THREAD SIZE | 0.562 INCHES 1ST END |
| THREAD CLASS | 3A 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 19.0 POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | 6TH MEDIA OXYGEN,GASEOUS |
| MANUFACTURERS CODE | 91816 |
| DESIGN CONTROL REFERENCE | D524A6D19 |
Restrictions/Controls & Freight Information | NSN 4820-01-054-6657
| 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 | 594 | unknown |
| Originating Activity Code | 9Z | DLIS-K Battle Creek, MI 49037-3084 |
| 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 4820-01-054-6657
Air Force| Category | Code | Description |
|---|---|---|
| Budget Code | 9 | General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors. |
| Price Validation | N | The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
|
| Fund Code | SF | Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point. |
| Materiel Management Aggregation Code | XZ | TG:FMS UNIQUE/WR-ALC |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DF | Department of the Air Force |
| Service Organization | F | U.S. Air Force |
| Reparability | N | Stock Fund (except Munitions) |
| Acquisition Advice Codes | P | RESTRICTED REQUISITION - SECURITY ASSISTANCE PROGRAM (SAP) 1. Indicates item is stocked or acquired only for SAP (replaces Military Assistance Program (MAP)) requirements, or 2. Indicates item is nonstocked and materiel is ordered from the contractor for shipment directly to the foreign government. 3. Base, post, camp, or station will not requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |