NSN 4820-01-643-0276 ASP3SCH, ASP-3SCH , 9834K43
Product Details | SAFETY RELIEF VALVE
4820-01-643-0276 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: ASP3SCH, ASP-3SCH , 9834K43 , 4820-01-643-0276, 01-643-0276, 4820016430276, 016430276
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 2015076 | 01-643-0276 | 05488 ( VALVE, SAFETY RELIEF ) |
Demand History | NSN 4820-01-643-0276
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 9834K43 | 2025-12-341 | 1 | DIBBS |
| ASP-3SCH | 2025-12-341 | 1 | DIBBS |
| 9834K43 | 2021-11-305 | 1 | DIBBS |
| ASP-3SCH | 2021-11-305 | 1 | DIBBS |
| 9834K43 | 2021-10-291 | 2 | DIBBS |
| ASP-3SCH | 2021-10-291 | 2 | DIBBS |
| 9834K43 | 2020-10-279 | 2 | DIBBS |
| ASP-3SCH | 2020-10-279 | 2 | DIBBS |
| 9834K43 | 2020-05-126 | 2 | DIBBS |
| ASP-3SCH | 2020-05-126 | 2 | DIBBS |
| 9834K43 | 2019-10-279 | 2 | DIBBS |
| ASP-3SCH | 2019-10-279 | 2 | DIBBS |
| 9834K43 | 2019-03-68 | 2 | DIBBS |
| ASP-3SCH | 2019-03-68 | 2 | DIBBS |
| 4820-01-643-0276 | 2018-06-156 | 1 | DIBBS |
| 4820-01-643-0276 | 2017-10-287 | 1 | DIBBS |
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Technical Data | NSN 4820-01-643-0276
| Characteristic | Specifications |
|---|---|
| MATERIAL | COPPER ALLOY BODY |
| STYLE DESIGNATOR | SCREW-IN CARTRIDGE |
| MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |
| MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 300.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | MANUAL |
| SPECIAL FEATURES | REDUCE NOISE BY 17-20 DB,TRAP PARTICLES DOWN TO 40 MICRON |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | FLOW CONTROL,MUFFLER |
Restrictions/Controls & Freight Information | NSN 4820-01-643-0276
| 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. |
| Electro-static Discharge Susceptible: | A | No known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity |
| 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. |
| 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 |
|---|---|---|
| No Freight Information | ||
Management | NSN 4820-01-643-0276
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 |