NSN 4820-00-640-5656 A37383, A373831V1068S24HA, S4824326974
Product Details | SAFETY RELIEF VALVE
4820-00-640-5656 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: A37383, A373831V1068S24HA, S4824326974, S4824-326974, 4820-00-640-5656, 00-640-5656, 4820006405656, 006405656
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-640-5656 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-00-640-5656
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Related Products | NSN 4820-00-640-5656
Technical Data | NSN 4820-00-640-5656
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | C1 ANGLE |
| FLOW CONTROL DEVICE | POPPET |
| MEDIA FOR WHICH DESIGNED | WATER, SALT SINGLE RESPONSE |
| MAXIMUM OPERATING PRESSURE | 3500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 200.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | UNTHREADED INTERNAL PIPE 1ST END |
| CONNECTION STYLE | G20B SOCKET 1ST END |
| NOMINAL PIPE SIZE ACCOMMODATED | 0.500 INCHES 1ST END |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 3300.0 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | SELECTED AND TESTED FOR NUCLEAR PROPULSION PLANT SYSTEMS |
| CRITICALITY CODE JUSTIFICATION | ZZZY |
| MANUFACTURERS CODE | 15187 |
| DESIGN CONTROL REFERENCE | A37383 |
Restrictions/Controls & Freight Information | NSN 4820-00-640-5656
| 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: | F | Munitions List Item or Commerce Control List Item. Demilitarization required. Demilitarization Instructions to be furnished by the Item/Technical Manager. |
| Controlled Inventory Item Code: | 7 | NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7). |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| Criticality Code: | Y | The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application. |
| Automatic Data Processing Equipment: | 0 | Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9) |
| Category | Code | Description |
|---|---|---|
| NMF Description | 127220 | PRESSURE REG/RED/RELIEF VALVES NOI |
| Less than car load rating | P | 77.5 |
| Less than truck load rating | P | 77.5 |
| Water commodity Code | 594 | unknown |
| Originating Activity Code | XX | |
| 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 4820-00-640-5656
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 2S | Major shipboard hull, mechanical, and electrical equipment Naval Sea Systems Command |
| Special Material ID | X1 | Nuclear power |
| Issue Repair, or Requisition | AF | Submit/refer requisitions to NAVSEA (other than ammunition-N23). |
| Special Material Content | 9 | Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions |
| Source of Supply | NRP | NAVICP-ERP 700 Robbins Avenue Philadelphia, PA 19111-5098 |
| Agency | DN | Department of the Navy |
| Service Organization | L | Lead Service - 22 (Repairable) |
| Reparability | H | Depot Level Reparable |
| Acquisition Advice Codes | A | SERVICE/AGENCY-REGULATED (Service/Agency use only.) # Issue, transfer or shipment is controlled by authorities above the ICP level to assure proper and equitable distribution. 1. The use or stockage of the item requires release authority based on prior or concurrent justification. 2. Requisitions will be submitted in accordance with Agency/Service requisitioning procedures. |
| Controlled Item Code | 7 | NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7). |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |