NSN 4820-01-446-3693 52-95F 8INBRZ, 5295F8INBRZ, 01-446-3693
Product Details | VENT-CHECK VALVE
4820-01-446-3693 A dual purpose marine valve used primarily with shipboard cargo tanks and bulkheads. It acts both as a vent valve, to relieve vacuum and pressure, and a check valve, to prevent cargo contamination. It is equipped with an internal flame screen and/or a protective mesh and may include a hinged cover.
Part Alternates: 52-95F 8INBRZ, 5295F8INBRZ, 4820-01-446-3693, 01-446-3693, 4820014463693, 014463693
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JUL 1997 | 01-446-3693 | 52995 ( VALVE, VENT-CHECK ) |
Drawings & Photos | NSN 4820-01-446-3693
Demand History | NSN 4820-01-446-3693
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 52-95F 8INBRZ | 2025-05-132 | 3 | DIBBS |
| 52-95F 8INBRZ | 2025-04-119 | 3 | DIBBS |
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Technical Data | NSN 4820-01-446-3693
| Characteristic | Specifications |
|---|---|
| MATERIAL | COPPER ALLOY BODY |
| STYLE DESIGNATOR | A2A STRAIGHT THRU FLANGED ENDS |
| VALVE SIZE | 8.000 INCHES |
| FACE TO FACE DISTANCE | 22.000 INCHES |
| FLOW CONTROL DEVICE | BALL |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | FLANGE ALL ENDS |
| FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| NOMINAL OUTSIDE DIAMETER | 13.500 INCHES ALL ENDS |
| NOMINAL THICKNESS | 0.938 INCHES ALL ENDS |
| BOLT HOLE QUANTITY | 8 ALL ENDS |
| BOLT HOLE NOMINAL DIAMETER | 0.875 INCHES ALL ENDS |
| BOLT CIRCLE NOMINAL DIAMETER | 11.750 INCHES ALL ENDS |
| FLANGE FACE DESIGN | PLAIN ALL ENDS |
| MOUNTING POSITION | HORIZONTAL |
| SPECIAL FEATURES | INCLUDES FLAME BARRIER SHIELD |
| END ITEM IDENTIFICATION | WASP CLASS LHD |
Restrictions/Controls & Freight Information | NSN 4820-01-446-3693
| 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 | 051080 | FAUCETS,BIBCOCKS,GATES VALVES |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| 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 | 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 4820-01-446-3693
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 | Z | INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |