Product Details | FLAT VALVE DIAPHRAGM

4820-00-989-0794 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: 2526527, 4820-00-989-0794, 00-989-0794, 4820009890794, 009890794

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 02 NOV 1966 00-989-0794

Demand History | NSN 4820-00-989-0794

Part Number Request Date QTY Origin
4820-00-989-0794 2024-01-11 2549 DIBBS
4820-00-989-0794 2021-10-292 1274 DIBBS
4820-00-989-0794 2016-12-339 2462 DIBBS
2526527 2014-09-267 30 GR
4820-00-989-0794 2014-09-267 30 MANUAL
4820-00-989-0794 2013-12-357 1546 DIBBS
4820-00-989-0794 2012-08-226 886 DIBBS
4820-00-989-0794 2012-04-97 811 DIBBS
4820-00-989-0794 2010-12-350 274 DIBBS
4820-00-989-0794 2010-11-321 179 DIBBS
4820-00-989-0794 2010-11-308 188 DIBBS
4820-00-989-0794 2009-04-105 276 DIBBS
4820-00-989-0794 2008-12-340 166 DIBBS
4820-00-989-0794 2008-11-317 142 DIBBS

Cross Reference | NSN 4820-00-989-0794

Part Number Cage Code Manufacturer
2526527 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT

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Technical Data | NSN 4820-00-989-0794

Characteristic Specifications
MATERIAL COPPER ALLOY
STYLE DESIGNATOR G49 FLAT
OUTSIDE DIAMETER 0.745 INCHES NOMINAL
MATERIAL THICKNESS 0.007 INCHES NOMINAL
MEDIA FOR WHICH DESIGNED ANY ACCEPTABLE
PRESSURE RATING NOT RATED
TEMP RATING NOT RATED

Restrictions/Controls & Freight Information | NSN 4820-00-989-0794

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 095190 HARDWARE, NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 713 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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 4820-00-989-0794

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