Product Details | FREQUENCY STANDARD

6625-00-890-6493 An item that can generate a fundamental frequency with a high degree of accuracy. Harmonics of this fundamental are then used as a reference point for checking throughout the radio spectrum. The standard may be stable crystal oscillator, noncrystal oscillator, tuning fork, atomic beam, molecular beam, gas cell, quantum mechanical resonator, or the like.

Part Alternates: AA58034, A-A-58034, E215061A003, E21-5061A003, 5061AE21003, 5061A-E21-003, 6625-00-890-6493, 00-890-6493, 6625008906493, 008906493

Instruments and Laboratory Equipment | Electrical and Electronic Properties Measuring and Testing Instruments

Supply Group (FSG) NSN Assign. NIIN
66 05 MAY 1972 00-890-6493

Cross Reference | NSN 6625-00-890-6493

Part Number Cage Code Manufacturer
5061A-E21-003 1LQK8 KEYSIGHT TECHNOLOGIES, INC.
A-A-58034 58536 FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES
E21-5061A003 1LQK8 KEYSIGHT TECHNOLOGIES, INC.

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Technical Data | NSN 6625-00-890-6493

Characteristic Specifications
UNIT TYPE STANDARD
FREQUENCY RANGE RATING 0.001 TO 100.000 KILOHERTZ
INDIVIDUAL PLUG-IN UNIT FREQUENCY NOT RATED
AC VOLTAGE RATING 115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL
FREQUENCY RATING 50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM
PHASE SINGLE
DC VOLTAGE RATING 22.0 VOLTS MINIMUM AND 30.0 VOLTS MAXIMUM
OVERALL WIDTH 16.750 INCHES NOMINAL
OVERALL HEIGHT 15.938 INCHES NOMINAL
OVERALL DEPTH 21.500 INCHES NOMINAL
RECORDING DEVICE ACCOMMODATION NOT PROVIDED
SPECIAL FEATURES OPT E21 DENOTES FLYING CLOCK & POWER SUPPLY; OPT 003 DENOTES COMBINATION OF OPT 001 TIME STANDARD & OPT 002 STANDBY POWER SUPPLY
III END ITEM IDENTIFICATION ELECTRONIC TEST EQUIPMENT
III UNPACKAGED UNIT WEIGHT 64.000 POUNDS
III SUPPLEMENTARY FEATURES CESIUM BEAM 100KHZ, 1MHZ, & 5MHZ
MANUFACTURERS CODE 1LQK8
DESIGN CONTROL REFERENCE 5061A-E21-003

Restrictions/Controls & Freight Information | NSN 6625-00-890-6493

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 061700 ELEC APPLIANCES/INSTRUMENTS NOI
Less than car load rating P 77.5
Less than truck load rating J 100.2
Water commodity Code 738 unknown
Originating Activity Code SE San Antonio Air Logistics Center
Kelly AFB, TX 78241-5000
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 Q Extremely fragile items including delicate instruments.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo 3 Electrostatic Sensitive Device (ESD), subject to damage caused by electrostatic discharge. (See DoD 4500.32-R, Volume 1, Appendix A, Section I for additional information on ESD devices).

Management | NSN 6625-00-890-6493

Category Code Description
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Materiel Management Aggregation CodeRHTG:AUTO TEST EQUIPMENT/AUTO TEST SYSTEMS (ATE/ATS) (FSC RESIDUAL MMAC)
Budget CodeY variousO & M:AF centrally procured equipment items. They are separate, primary end items (other than the weapon system itself) needed by a user to perform an assigned mission. They are nonexpendable items (ERRCD NF or ND) which are not consumed in use, and they do not lose their original identity during periods of use by incorporation into, or attachment to another assembly.
Source of SupplyFLZWarner Robins Air Logistics Center
Robins AFB, GA 31098-5609
AgencyDFDepartment of the Air Force
Service OrganizationLLead Service - 22 (Repairable)
ReparabilitySAF Equipment Management System (AFEMS)
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