Product Details | FLAT VALVE DIAPHRAGM

4820-00-306-1213 An item in the form of one or more thin flexible sheets normally designed to form a tight seal between chambers of a valve, and to transmit motion to a valve disk either directly or through a mechanical linkage. The surface of the item(s) may not 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 a center hole. Excludes DIAPHRAGM, VALVE, SPECIAL SHAPED and GASKET.20316600062Aircraft Air Conditioning, Heating, and Pressurizing Equipment48100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: C1951, C1951H, 4820-00-306-1213, 00-306-1213, 4820003061213, 003061213

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1961 00-306-1213

Demand History | NSN 4820-00-306-1213

Part Number Request Date QTY Origin
C1951H 2025-03-63 3 United States
C1951H 2021-08-214 132 DIBBS
C1951H 2021-07-203 132 DIBBS
4820-00-306-1213 2018-09-263 212 DIBBS
4820-00-306-1213 2018-04-105 120 DIBBS
4820-00-306-1213 2015-09-246 213 DIBBS
4820-00-306-1213 2015-03-83 1 Taiwan
4820-00-306-1213 2014-11-324 135 DIBBS
4820-00-306-1213 2010-01-29 10 DIBBS

Cross Reference | NSN 4820-00-306-1213

Part Number Cage Code Manufacturer
C1951 86184 GRISWOLD INDUSTRIES, CO. DBA CLA-VAL CO
C1951H 86184 GRISWOLD INDUSTRIES, CO. DBA CLA-VAL CO

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Technical Data | NSN 4820-00-306-1213

Characteristic Specifications
MATERIAL RUBBER,SYNTHETIC,NYLON REINFORCED
STYLE DESIGNATOR G49 FLAT
HOLE DIAMETER 0.312 INCHES NOMINAL
OUTSIDE DIAMETER 5.219 INCHES NOMINAL
BOLT CIRCLE DIAMETER 4.719 INCHES NOMINAL
MATERIAL THICKNESS 0.050 INCHES NOMINAL
CENTER HOLE DIAMETER 0.438 INCHES NOMINAL
BOLT HOLE QUANTITY 8
MEDIA FOR WHICH DESIGNED ANY ACCEPTABLE
PRESSURE RATING NOT RATED
TEMP RATING NOT RATED

Restrictions/Controls & Freight Information | NSN 4820-00-306-1213

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 133300 MACHINERY/MACHINES NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 593 unknown
Originating Activity Code XX
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 4820-00-306-1213

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 CodesJNOT 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each