NSN 5985-00-009-4475, 5985000094475
Cancelled -> Replaced by 5820004849885

Federal Supply Classification: FSC 5985 - Antennas, Waveguides, and Related Equipment
National Item Identification Number: NIIN 000094475
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.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 5985-00-009-4475

National Stock Number (NSN) 5985-00-009-4475, or NIIN 000094475, (attenuator,variable) was assigned August 4, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5820004849885.

There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier 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 Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.

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 5985000094475 contains an unknown precious metal.

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 Aug 01, 2025.

Technical Characteristics

MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR: (AKEJ) UNC
SEGMENT ATTENUATION RANGE IN DECIBELS: (BQNS) +1.00/+9.00 AND +10.00 TO 19.00 AND +20.00 TO 29.00 AND +30.00/+39.00 AND +40.00/+49.00 AND +50.00 TO 59.00 AND +60.00 TO 69.00 AND +70.00/+79.00 AND +80.00 TO 89.00 AND +90.00/+99.00
III APPLICATION DESIGN: (AAFS) TRANSMISSION LINE
MOUNTING FACILITY TYPE AND QUANTITY: (AXHR) 4 THREADED HOLE
SEGMENT ATTENUATION ACCURACY IN DECIBELS: (BQNT) -0.40/+0.40 AND -1.00/+1.00 AND -1.20/+1.20 AND -1.40/+1.40 AND -1.50/+1.50 AND -1.70/+1.70 AND -1.80/+1.80 AND -2.00/+2.00 AND -2.00/+2.00 AND -2.00/+2.00
ADJUSTMENT DEVICE TYPE AND QUANTITY: (CQTQ) 2 KNOB
APPLICATION DESIGN: (AAFS) TRANSMISSION LINE
ATTENUATION PER STEP IN DECIBELS: (ASYH) 1.0
ATTENUATION VARIATION METHOD: (ASYF) STEPPED
BODY STYLE: (AAQL) COAXIAL TYPE
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: (ABKQ) 4.062 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: (ABKR) 2.250 INCHES NOMINAL
COAXIAL CONNECTOR SERIES DESIGNATION: (AHUC) N
FREQUENCY RANGE: (BNGR) 0.000 GIGAHERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
IMPEDANCE RATING IN OHMS: (CTGG) 50.0 INPUT-OUTPUT
OVERALL LENGTH: (ABHP) 5.938 INCHES NOMINAL
OVERALL WIDTH: (ABMK) 7.562 INCHES NOMINAL
MOUNTING FACILITY TYPE AND QUANTITY: (AXHR) 4 THREADED HOLE(S)
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER: (CRYY) 0.138 INCHES
MOUNTING FACILITY PATTERN: (CQYJ) FOUR POSITION RECTANGULAR
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR: (AKEJ) UNIFIED NATIONAL COARSE (UNC)
MOUNTING THREAD QUANTITY: (CGGK) 32 PER INCH
OVERALL ATTENUATION RANGE IN DECIBELS: (ASYD) +0.0 TO 99.0
OVERALL HEIGHT: (ABKW) 2.719 INCHES NOMINAL
POWER RATING: (AJDB) 2.0 WATTS AVERAGE AND 2.0 KILOWATTS PEAK
SEGMENT ATTENUATION ACCURACY IN DECIBELS: (BQNT) -0.40 TO 0.40 AND -1.00 TO 1.00 AND -1.20 TO 1.20 AND -1.40 TO 1.40 AND -1.50 TO 1.50 AND -1.70 TO 1.70 AND -1.80 TO 1.80 AND -2.00 TO 2.00
SEGMENT ATTENUATION RANGE IN DECIBELS: (BQNS) +1.00 TO 9.00 AND +10.00 TO 19.00 AND +20.00 TO 29.00 AND +30.00 TO 39.00 AND +40.00 TO 49.00 AND +50.00 TO 59.00 AND +60.00 TO 69.00 AND +70.00 TO 79.00 AND +80.00 TO 89.00 AND +90.00 TO 99.00
STEP POSITION QUANTITY: (ASYG) 99
TERMINAL TYPE AND QUANTITY: (TTQY) 2 CONNECTOR, COAXIAL, FEMALE
VOLTAGE STANDING WAVE RATIO: (AHTW) 1.50
OVERALL ATTENUATION RANGE IN DECIBELS: (ASYD) +0.0/+99.0