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NSN 5985-00-549-9630, 5985005499630
ATTENUATOR,VARIABLE

Federal Supply Classification
FSC 5985 - Antennas, Waveguides, and Related Equipment
National Item Identification Number
NIIN 005499630
Codification Country
United States
Item Name Code
INC 00838
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 5985-00-549-9630

National Stock Number (NSN) 5985-00-549-9630, or NIIN 005499630, (attenuator,variable) was assigned November 11, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 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. ISO Group has several sources of supply for this NSN.

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

This NSN is unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 02, 2005, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 00838. [A DEVICE FOR REDUCING THE STRENGTH OF AN ALTERNATING CURRENT SIGNAL EITHER CONTINUOUSLY OR IN STEPS, WITHOUT CAUSING APPRECIABLE SIGNAL DISTORTION, BY MAINTAINING SUBSTANTIALLY CONSTANT OUTPUT AND/OR INPUT IMPEDANCE MATCH. CONTINUOUSLY VARIABLE RESISTIVE DEVICES MUST CONSIST OF AT LEAST TWO SECTIONS OR ONE SECTION WITH AT LEAST TWO ROTATING CONTACTS. THE ITEM MUST HAVE AN OVERALL ATTENUATION RATING. INCLUDES TANDEM MOUNTED VARIABLE RESISTORS DESIGNED TO FUNCTION AS AN ATTENUATOR BUT WHOSE TERMINALS ARE NOT CONNECTED. SEE ALSO RESISTOR, VAIABLE (AS MODIFIED).]. 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 5985005499630 does not contain precious metals.

This NSN is associated to Schedule B 8529109000: antenna & antenna reflectors of all kinds; parts suitable for use soley or principally w/ apparatus of heading 8525 to 8528, nesoi. The Schedule B End Use is listed as telecommunications equipment. NAICS classification category 334220: radio and television broadcasting and wireless communications equipment manufacturing.

This information was last updated on .


Technical Characteristics

III APPLICATION DESIGN
(AAFS) WAVEGUIDE
OPERATING TEMP RANGE
(AFGA) +0.0/+71.0 DEG CELSIUS
OVERALL ATTENUATION RANGE IN DECIBELS
(ASYD) +0.2/+10.0
ADJUSTMENT DEVICE TYPE AND QUANTITY
(CQTQ) 1 KNOB
APPLICATION DESIGN
(AAFS) WAVEGUIDE
ATTENUATION VARIATION METHOD
(ASYF) CONTINUOUS
BODY STYLE
(AAQL) WAVEGUIDE TYPE
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH
(ABKQ) 1.280 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH
(ABKR) 1.220 INCHES NOMINAL
FREQUENCY RANGE
(BNGR) 8.200 GIGAHERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
OVERALL ATTENUATION RANGE IN DECIBELS
(ASYD) +0.2 TO 10.0
OVERALL HEIGHT
(ABKW) 1.625 INCHES NOMINAL
OVERALL LENGTH
(ABHP) 2.500 INCHES NOMINAL
OVERALL WIDTH
(ABMK) 2.750 INCHES MINIMUM AND 3.000 INCHES MAXIMUM
MOUNTING FACILITY TYPE AND QUANTITY
(AXHR) 4 TERMINAL W/MOUNTING HOLES
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER
(CRYY) 0.164 INCHES
MOUNTING FACILITY PATTERN
(CQYJ) FOUR POSITION RECTANGULAR
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR
(AKEJ) UNC
MOUNTING THREAD QUANTITY
(CGGK) 32 PER INCH
OPERATING TEMP RANGE
(AFGA) +0.0 TO 71.0 CELSIUS
VOLTAGE STANDING WAVE RATIO
(AHTW) 1.20
WAVEGUIDE FLANGE DESIGNATION
(AKSA) UG-136B/U
WAVEGUIDE FLANGE TYPE
(AKPT) CHOKE
TERMINAL TYPE AND QUANTITY
(TTQY) 2 FLANGE
UNTHREADED MOUNTING HOLE DIAMETER
(AEBV) 0.144 INCHES MINIMUM AND 0.147 INCHES MAXIMUM
OPERATING TEMP RANGE
(AFGA) +0.0 TO 71.0 DEG CELSIUS

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