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NSN 6625-01-365-1949, 6625013651949
FREQUENCY STANDARD

Federal Supply Classification
FSC 6625 - Electrical and Electronic Properties Measuring and Testing Instruments
National Item Identification Number
NIIN 013651949
Codification Country
United States
Item Name Code
INC 42641
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(P) There is no information in the HMIRS; 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.
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DLMS® Summary

National Stock Number 6625-01-365-1949

National Stock Number (NSN) 6625-01-365-1949, or NIIN 013651949, (frequency standard) was assigned October 2, 1992 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 02, 1999, this NSN's acquisition method was noted as: Not established. Not established.

This NSN is assigned to Item Name Code (INC) 42641. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; 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. NSN 6625013651949 does not contain precious metals.

This NSN is associated to Schedule B 9030908030: parts and accessories of articles of schedule b subheading 9030.39. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334515: instrument manufacturing for measuring and testing electricity and electrical signals.

This information was last updated on .


Technical Characteristics

III UNIT TYPE
(APQB) STANDARD
AC VOLTAGE RATING
(ACYN) 115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL
DC VOLTAGE RATING
(ACYR) 22.0 VOLTS MINIMUM AND 30.0 VOLTS MAXIMUM
FREQUENCY CHANNEL QUANTITY
(ANLD) 2
FREQUENCY RANGE RATING
(AFGQ) +5.000 TO 10.000 MEGAHERTZ
FREQUENCY RATING
(ACZB) 47.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM
INDIVIDUAL CHANNEL FREQUENCY
(ANLE) 5.0 MEGAHERTZ NOMINAL AND 10.0 MEGAHERTZ NOMINAL
OVERALL HEIGHT
(ABKW) 5.200 INCHES NOMINAL
OVERALL LENGTH
(ABHP) 21.000 INCHES NOMINAL
OVERALL WIDTH
(ABMK) 19.000 INCHES NOMINAL
MOUNTING METHOD
(AXGY) RACK
PHASE
(FAAZ) SINGLE
RECORDING DEVICE ACCOMMODATION
(BHZL) NOT PROVIDED
SPECIAL FEATURES
(FEAT) ACCURACY +/- 7X10-12; SETTABILITY +/- 3X10-12; OPERATING TEMP RANGE 0 TO 50DEG. C;STABILITY +/-3X10-12 OVER THE LIFE OF THE TUBE; SPECTRAL PURITY >81DB FOR 10MHZ AND >87 FOR 5MHZ; AMPLITUDE 1VRMS INTO 50 OHM LOAD; MONITOR OUTPUT IS A TYPE D CONNECTOR; WARMUP TIME IS 20MIN FOR 10 MHZ AND 45 MIN FOR 5MHZ; FRONT PANEL CONNECTORS FOR 1PPS,SYNC INPUT,ZEEMAN INPUT,RF OUTPUTS;OPERATING HUMIDITY,95% UP TO 50C; OPTION -116 IS TIME OF DAY DISPLAY AND A 1PPS OUTPUT; OPT -075 IS FOR AN 8 YEAR WARRANTY ON CESIUM BEAM TUBE; INTERNAL MICROPROCESSOR PROVIDE FOR POWER UP AUTOMATIC LOCK ROUTINE; CONTROLLED BY FRONT PANEL SWITCHES AND REMOTE CONTROL THRU REAR PANEL CONNECTOR
UNIT TYPE
(APQB) STANDARD
UNPACKAGED UNIT WEIGHT
(AWJN) 60.000 POUNDS
SUPPLEMENTARY FEATURES
(SUPP) WITHOUT -075 INDICATES 3 YEAR WARRANTY ON CESIUM BEAM TUBE
FREQUENCY RANGE RATING
(AFGQ) +5.000/+10.000 MEGAHERTZ

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