Product Details | ELECTRICAL TACHOMETER INDICATOR

6620-00-551-3608 An instrument which displays, in units of revolutions per minute, the transmitted rotational speed of a shaft for a specified elapsed time.2036320000066200018Engine Instruments66800078Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments

Part Alternates: ERU4A, MILI25689, 8DJ43BAE, 8DJ81BAA1, 6620-00-551-3608, 00-551-3608, 6620005513608, 005513608

Instruments and Laboratory Equipment | Engine Instruments

Supply Group (FSG) NSN Assign. NIIN
66 01 JAN 1963 00-551-3608

Cross Reference | NSN 6620-00-551-3608

Part Number Cage Code Manufacturer
8DJ43BAE 24446 GENERAL ELECTRIC CO
8DJ81BAA1 97424 AMETEK, INC. DIV AEROSPACE & DEFENSE
ERU4A 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MILI25689 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 6620-00-551-3608

Characteristic Specifications
ELECTRICAL CONNECTION QUANTITY 1
ELECTRICAL CONNECTION IDENTIFYING NUMBER DWG NO. AND10066-10SL-3P
ACCURACY RATING 100.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE
SCALE RANGE 500.0 TO 4000.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE
POINTER TYPE CLOCK-HAND SINGLE POINTER
POINTER FINISH FLUORESCENT SINGLE POINTER
CURRENT TYPE AC
CONTACT QUANTITY 3
CONTACT TYPE PIN
DEPTH 4.250 INCHES NOMINAL
NONDEFINITIVE SPEC/STD DATA ERU-4/A TYPE
III FSC APPLICATION DATA ENGINE INSTRUMENT AIRCRAFT
MANUFACTURERS CODE 81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE ERU4A
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MILI25689

Restrictions/Controls & Freight Information | NSN 6620-00-551-3608

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 177220 SPEED INDICATORS/HEADS/ODOMETERS
Less than car load rating
Less than truck load rating J 100.2
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 H Signal Corps supplies and equipment, including radio equipment and supplies, communications equipment and supplies, electrical equipment and supplies, etc.
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 6620-00-551-3608

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 CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each