Product Details | PRESSURE RELIEF SAFETY HEAD

4820-00-891-3349 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: 23942137, 4820-00-891-3349, 00-891-3349, 4820008913349, 008913349

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 16 JAN 1967 00-891-3349

Demand History | NSN 4820-00-891-3349

Part Number Request Date QTY Origin
4820-00-891-3349 2012-02-54 2 DIBBS
4820-00-891-3349 2012-02-54 4 DIBBS
4820-00-891-3349 2012-02-54 24 DIBBS
4820-00-891-3349 2011-08-223 24 DIBBS
4820-00-891-3349 2011-02-48 4 DIBBS
4820-00-891-3349 2010-12-349 2 DIBBS
4820-00-891-3349 2010-11-308 4 DIBBS
4820-00-891-3349 2010-09-263 6 DIBBS
4820-00-891-3349 2010-08-215 4 DIBBS
4820-00-891-3349 2010-05-141 4 DIBBS
4820-00-891-3349 2009-05-132 6 DIBBS
4820-00-891-3349 2009-01-28 4 DIBBS

Cross Reference | NSN 4820-00-891-3349

Part Number Cage Code Manufacturer
23942137 99221 TAVCO INC.

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Technical Data | NSN 4820-00-891-3349

Characteristic Specifications
HEAD MATERIAL COPPER ALLOY
END CONNECTION TYPE THREADED
BURST PRESSURE 4200.0 PRESSURE POUNDS PER SQUARE INCH GAGE AND 4500.0 PRESSURE POUNDS PER SQUARE INCH GAGE
BURST TEMPERATURE 275.0 DEG FAHRENHEIT

Restrictions/Controls & Freight Information | NSN 4820-00-891-3349

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
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 KE Naval ICP
Philadelphia, PA 19111
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 4820-00-891-3349

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each