NSN 4820-01-646-8601 61700FBSS, 6-1700FBSS , 01-646-8601
Product Details | VENT-CHECK VALVE
4820-01-646-8601 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: 61700FBSS, 6-1700FBSS , 4820-01-646-8601, 01-646-8601, 4820016468601, 016468601
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 2015215 | 01-646-8601 | 52995 ( VALVE, VENT-CHECK ) |
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Technical Data | NSN 4820-01-646-8601
| Characteristic | Specifications |
|---|---|
| MATERIAL | COPPER ALLOY BODY |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| VALVE SIZE | 6.00 INCHES |
| FACE TO FACE DISTANCE | 9.00 INCHES |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | FLANGE 1ST END |
| FLANGE SHAPE | ROUND WITH HOLES 1ST END |
| BOLT HOLE QUANTITY | 8 1ST END |
| FLANGE FACE DESIGN | PLAIN 1ST END |
| SPECIAL FEATURES | INVERTED VENT CHECK VALVE - 6" FLANGED, 1700 SERIES (W/HALF FLOAT) |
Restrictions/Controls & Freight Information | NSN 4820-01-646-8601
| Category | Code | Description |
|---|---|---|
| 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. |
| 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 |
|---|---|---|
| No Freight Information | ||
Management | NSN 4820-01-646-8601
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 | 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 |