NSN 4820-01-120-2813 77GRU017, 77-GRU-017, 01-120-2813
Product Details | PRESSURE RELIEF SAFETY HEAD
4820-01-120-2813 An item of varying shape and size consisting of a metallic body which incloses a nonreusable metallic or nonmetallic disk(s), which is designed and calibrated to burst at a given pressure. It may be used independently, or in conjunction with relief valves to relieve overpressure, and to protect relief valve(s) from corrosive conditions. Excludes VALVE, SAFETY RELIEF and PLUG, FUSIBLE. For items furnished with a disk, see HEAD AND DISK, SAFETY, PRESSURE RELIER.
Part Alternates: 77GRU017, 77-GRU-017, 4820-01-120-2813, 01-120-2813, 4820011202813, 011202813
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 14 OCT 1981 | 01-120-2813 | 28139 ( HEAD, SAFETY, PRESSURE RELIEF ) |
Cross Reference | NSN 4820-01-120-2813
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 77-GRU-017 | 32874 | BS&B SAFETY SYSTEMS, L.L.C. |
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Technical Data | NSN 4820-01-120-2813
| Characteristic | Specifications |
|---|---|
| HEAD MATERIAL | COPPER ALLOY |
| HEAD TYPE | BOLTED |
| HEAD SIZE | 4.000 INCHES |
| END CONNECTION TYPE | FREE OUTLET |
| BURST PRESSURE | 15.0 PRESSURE POUNDS PER SQUARE INCH GAGE AND 20.0 PRESSURE POUNDS PER SQUARE INCH GAGE |
| BURST TEMPERATURE | 267.0 DEG FAHRENHEIT |
Restrictions/Controls & Freight Information | NSN 4820-01-120-2813
| 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 | 594 | 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 4820-01-120-2813
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 3B | Navy-owned stocks of field level repairable 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 |