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NSN 5985-00-172-4943, 5985001724943
ATTENUATOR,VARIABLE

Federal Supply Classification
FSC 5985 - Antennas, Waveguides, and Related Equipment
National Item Identification Number
NIIN 001724943
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 5985-00-172-4943

National Stock Number (NSN) 5985-00-172-4943, or NIIN 001724943, (attenuator,variable) was assigned August 30, 1972 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. 2 of those 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, there are no suppliers that are 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 Aug 02, 2006, 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 5985001724943 does not contain precious metals.

This information was last updated on .


Technical Characteristics

OVERALL WIDTH
(ABMK) 1.936 INCHES NOMINAL
COAXIAL CONNECTOR SERIES DESIGNATION
(AHUC) BNC
MOUNTING THREAD QUANTITY
(CGGK) 32 PER INCH
SHAFT DIAMETER
(ABWV) 0.250 INCHES NOMINAL
ATTENUATION PER STEP IN DECIBELS
(ASYH) 0.1
TERMINAL TYPE AND QUANTITY
(TTQY) 2 CONNECTOR, COAXIAL, FEMALE
APPLICATION DESIGN
(AAFS) TRANSMISSION LINE
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS
(ASYC) 0.05
ATTENUATION VARIATION METHOD
(ASYF) STEPPED
OVERALL ATTENUATION ACCURACY IN DECIBELS
(BQNR) -0.035 TO 0.035
OVERALL ATTENUATION ACCURACY IN DECIBELS
(BQNR) -0.035/+0.035
FREQUENCY RANGE
(BNGR) 0.000 HERTZ MINIMUM AND 32.000 MEGAHERTZ MAXIMUM
DISTANCE BETWEEN MOUNTING FACILITY CENTERS
(AEJN) 1.125 INCHES NOMINAL
MOUNTING FACILITY TYPE AND QUANTITY
(AXHR) 2 THREADED HOLE
IMPEDANCE RATING IN OHMS
(CTGG) 75.0 INPUT-OUTPUT
OVERALL ATTENUATION RANGE IN DECIBELS
(ASYD) +0.0/+1.0
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR
(AKEJ) UNC
MOUNTING FACILITY PATTERN
(CQYJ) TWO POSITION IN-LINE
OVERALL ATTENUATION RANGE IN DECIBELS
(ASYD) +0.0 TO 1.0
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER
(CRYY) 0.164 INCHES
III APPLICATION DESIGN
(AAFS) TRANSMISSION LINE
OVERALL LENGTH
(ABHP) 3.500 INCHES NOMINAL
POWER RATING
(AJDB) 500.0 MILLIWATTS AVERAGE
ADJUSTMENT DEVICE TYPE AND QUANTITY
(CQTQ) 1 SHAFT
SHAFT TYPE
(CRSJ) ROUND
SHAFT LENGTH
(ABXF) 0.938 INCHES NOMINAL
BODY STYLE
(AAQL) COAXIAL TYPE
OVERALL HEIGHT
(ABKW) 2.818 INCHES NOMINAL
VOLTAGE STANDING WAVE RATIO
(AHTW) 1.06
STEP POSITION QUANTITY
(ASYG) 10

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