NSN 4820-00-191-6881 C4912, C491-2, P20383
Product Details | SAFETY RELIEF VALVE
4820-00-191-6881 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: C4912, C491-2, P20383, P20-383, 4820-00-191-6881, 00-191-6881, 4820001916881, 001916881
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 17 DEC 1971 | 00-191-6881 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-00-191-6881
Demand History | NSN 4820-00-191-6881
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 4820-00-191-6881 | 2018-08-217 | 10 | DIBBS |
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Related Products | NSN 4820-00-191-6881
Technical Data | NSN 4820-00-191-6881
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY2024 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | ANODIZE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| STYLE DESIGNATOR | C6 STRAIGHT THRU |
| FLOW CONTROL DEVICE | DISK |
| MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |
| MAXIMUM OPERATING PRESSURE | 60.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 450.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE DISCHARGE FLOW RATE | 200.0 CUBIC FEET PER MINUTE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END |
| CONNECTION STYLE | G50 EXTERNAL SEAT FOR GASKET SEAL 1ST END |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 1.000 INCHES 1ST END |
| THREAD SERIES DESIGNATOR | UN 1ST END |
| NOMINAL THREAD SIZE | 1.312 INCHES 1ST END |
| THREAD QUANTITY PER INCH | 12 1ST END |
| THREAD CLASS | 3A 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| OPENING PRESSURE SETTING | 50.0 POUNDS PER SQUARE INCH |
| ADJUSTABLE PRESSURE RANGE | 47.0 TO 53.0 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE |
Restrictions/Controls & Freight Information | NSN 4820-00-191-6881
| 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 | 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 4820-00-191-6881
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 | SX | SX:AF SICA RESIDUAL MMAC-OC-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 | 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 |