Product Details | VENT VALVE

4820-01-218-3308 A valve designed to relieve internal pressure from gear housings, automotive axles, differentials, transmissions and the like. May or may not be threaded on one end. For items with relief pressure ratings see VALVE (1), SAFETY RELIEF.

Part Alternates: 101770, 10177-0, 1536, 4820-01-218-3308, 01-218-3308, 4820012183308, 012183308

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 10 OCT 1985 01-218-3308

Drawings & Photos | NSN 4820-01-218-3308


Demand History | NSN 4820-01-218-3308

Part Number Request Date QTY Origin
4820-01-218-3308 2022-04-94 1 PK

Cross Reference | NSN 4820-01-218-3308

Part Number Cage Code Manufacturer
10177-0 58442 NIKKISO PUMPS AMERICA INC
1536 58442 NIKKISO PUMPS AMERICA INC

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Technical Data | NSN 4820-01-218-3308

Characteristic Specifications
THREAD SERIES DESIGNATOR NPT ALL ENDS
CONNECTION STYLE G9 PLAIN,OPTIONAL END(PIPE) 1ST END
THREAD DIRECTION RIGHT-HAND ALL ENDS
CONNECTION TYPE THREADED INTERNAL PIPE 1ST END
CONNECTION TYPE THREADED EXTERNAL PIPE 2ND END
NOMINAL THREAD SIZE 0.250 INCHES 1ST END
STYLE DESIGNATOR A7 ANGLE
NOMINAL THREAD SIZE 0.125 INCHES 2ND END
MATERIAL STEEL COMP 316 BODY
CONNECTION STYLE G46B PLAIN (PIPE) 2ND END

Restrictions/Controls & Freight Information | NSN 4820-01-218-3308

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: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 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 576 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 4820-01-218-3308

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
ReparabilityDField Level Reparables
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