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NSN 5985-00-431-8276, 5985004318276
ATTENUATOR,VARIABLE

Federal Supply Classification
FSC 5985 - Antennas, Waveguides, and Related Equipment
National Item Identification Number
NIIN 004318276
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 5985-00-431-8276

National Stock Number (NSN) 5985-00-431-8276, or NIIN 004318276, (attenuator,variable) was assigned February 11, 1972 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.

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 Jul 01, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) 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 5985004318276 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

OVERALL ATTENUATION RANGE IN DECIBELS
(ASYD) +0.5/+20.0
OVERALL ATTENUATION ACCURACY IN DECIBELS
(BQNR) -1.00/+1.00
III APPLICATION DESIGN
(AAFS) WAVEGUIDE
OPERATING TEMP RANGE
(AFGA) +0.0/+55.0 DEG CELSIUS
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) 0.956 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH
(ABKR) 0.994 INCHES NOMINAL
FREQUENCY RANGE
(BNGR) 16.000 GIGAHERTZ MINIMUM AND 17.000 GIGAHERTZ MAXIMUM
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS
(ASYC) 0.5
OPERATING TEMP RANGE
(AFGA) +0.0 TO 55.0 DEG CELSIUS
OVERALL ATTENUATION ACCURACY IN DECIBELS
(BQNR) -1.00 TO 1.00
OVERALL ATTENUATION RANGE IN DECIBELS
(ASYD) +0.5 TO 20.0
OVERALL HEIGHT
(ABKW) 2.156 INCHES NOMINAL
OVERALL LENGTH
(ABHP) 2.480 INCHES MINIMUM AND 2.520 INCHES MAXIMUM
OVERALL WIDTH
(ABMK) 1.312 INCHES NOMINAL
MOUNTING FACILITY TYPE AND QUANTITY
(AXHR) 4 TERMINAL W/MOUNTING HOLES
MOUNTING FACILITY PATTERN
(CQYJ) FOUR POSITION RECTANGULAR
POWER RATING
(AJDB) 1.0 WATTS AVERAGE
UNTHREADED MOUNTING HOLE DIAMETER
(AEBV) 0.144 INCHES NOMINAL
VOLTAGE STANDING WAVE RATIO
(AHTW) 1.20
WAVEGUIDE FLANGE DESIGNATION
(AKSA) UG-419/U
WAVEGUIDE FLANGE TYPE
(AKPT) COVER
TERMINAL TYPE AND QUANTITY
(TTQY) 2 FLANGE

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