Product Details | DIAPHRAGM REPLACEMENT PARTS KIT

4820-01-441-7587 A parts kit used to replace diaphram(s) in a brake chamber, clutch cylinder, valve, and the like.

Part Alternates: RK909RV887141, RK909RV-887141, RK909RV-887141-1 1/4IN, RK909RV887141114IN, 4820-01-441-7587, 01-441-7587, 4820014417587, 014417587

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 24 FEB 1997 01-441-7587

Demand History | NSN 4820-01-441-7587

Part Number Request Date QTY Origin
0794062 2025-10-287 20 DIBBS
0794062 2023-07-201 33 DIBBS
RK909RV-887141-1 1/4IN 2022-02-48 27 DIBBS
RK909RV-887141-1 1/4IN 2022-01-11 24 DIBBS
RK909RV-887141-1 1/4IN 2021-10-297 24 DIBBS
RK909RV-887141-1 1/4IN 2021-08-231 24 DIBBS
RK909RV-887141-1 1/4IN 2021-07-183 12 DIBBS
RK909RV-887141-1 1/4IN 2021-06-168 12 DIBBS
RK909RV-887141-1 1/4IN 2019-06-169 33 DIBBS
4820-01-441-7587 2015-12-344 30 DIBBS
4820-01-441-7587 2013-02-38 24 DIBBS
4820-01-441-7587 2012-06-171 5 DIBBS
4820-01-441-7587 2011-08-238 4 DIBBS
4820-01-441-7587 2010-09-250 3 DIBBS
4820-01-441-7587 2008-12-343 2 DIBBS

Cross Reference | NSN 4820-01-441-7587

Part Number Cage Code Manufacturer
RK909RV-887141 79227 WATTS REGULATOR CO
RK909RV-887141-1 1/4IN 79227 WATTS REGULATOR CO

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Technical Data | NSN 4820-01-441-7587

Characteristic Specifications
COMPONENT QUANTITY 6
NONSUPPLY ITEMS AND QUANTITIES DIAPHRAGM 1,DISC ASSEMBLY 1,O-RING 1,O-RING 1,O-RING 2,LUBRICANT A/N
END ITEM NAME BACKFLOW PREVENTER
END ITEM SOURCE 79227
END ITEM IDENTIFICATION SERIES 909

Restrictions/Controls & Freight Information | NSN 4820-01-441-7587

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:AItem 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 127200 PRESSURE REDCNG WATER RELIEF VALVE
Less than car load rating
Less than truck load rating M 85.0
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 4820-01-441-7587

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
KT : Kit