Product Details | SPECIAL SHAPED ACTUATOR VALVE DIAPHRAGM

4820-00-493-1971 An item constructed of one or more layers of thin flexible material, either laminated or separated, designed to form a tight seal between the chambers of a valve, and to transmit pressure inducted motion to a valve disk either directly or through a mechanical linkage. The surface of the item must be formed or molded to have a beaded or rolled edge, ribs or any other raised surfaces. The item may contain bolt holes and/or center holes. Excludes DIAPHRA GM, VALVE, FLAT and GASKET.20529100042Engine Fuel System Components, Nonaircraft29150064Engine Fuel System Components, Aircraft and Missile Prime Movers42200038Marine Lifesaving and Diving Equipment48100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: B26247, 531-503101, 4820-00-493-1971, 00-493-1971, 4820004931971, 531503101, 004931971

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 13 FEB 1970 00-493-1971

Cross Reference | NSN 4820-00-493-1971

Part Number Cage Code Manufacturer
531-503101 33547 KIELEY AND MUELLER INC SUB OF JOHNSON CONTROLS INC
B26247 33547 KIELEY AND MUELLER INC SUB OF JOHNSON CONTROLS INC

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Technical Data | NSN 4820-00-493-1971

Characteristic Specifications
HOLE DIAMETER 0.375 INCHES NOMINAL
OUTSIDE DIAMETER 7.500 INCHES NOMINAL
BOLT CIRCLE DIAMETER 6.750 INCHES NOMINAL
OVERALL HEIGHT 0.625 INCHES NOMINAL
MATERIAL THICKNESS 0.066 INCHES NOMINAL
CENTER HOLE DIAMETER 0.500 INCHES NOMINAL
BOLT HOLE QUANTITY 12
MEDIA FOR WHICH DESIGNED ANY ACCEPTABLE
PRESSURE RATING NOT RATED
TEMP RATING NOT RATED

Restrictions/Controls & Freight Information | NSN 4820-00-493-1971

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:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
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 194120 WASHERS/GASKETS/PCKG DVCS NOI
Less than car load rating
Less than truck load rating W Rating Variable
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 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 4820-00-493-1971

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 CodesZINSURANCE/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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each